Spanish Phrase
¿Puedo cambiar los detalles de mi reserva?
Meaning
Literally, “Can I change the details of my reservation?” It is a polite request to modify information such as dates, room type, or passenger name that were previously booked.
When to use
Use this sentence when you call or email a hotel, airline, restaurant, or any service where you have a confirmed booking and need to adjust the information.
✦Grammar Breakdown
¿Puedocambiarlosdetallesdemireserva?
Poder (present)
‘Puedo’ is the first‑person singular present of poder, used to ask for permission or ability.
Infinitive after poder
When poder is followed by another verb, that verb stays in the infinitive (cambiar).
Definite article + noun
‘Los detalles’ uses the plural definite article ‘los’ to refer to specific details already known.
Possessive adjective
‘Mi’ indicates that the reservation belongs to the speaker; it agrees in gender and number with the noun it modifies.
Prepositional phrase ‘de mi reserva’
The preposition ‘de’ links the details to the reservation, forming a genitive relationship.
🗨In Conversation
¿Puedo cambiar los detalles de mi reserva?
Can I change the details of my reservation?
Claro, ¿qué le gustaría modificar?
Sure, what would you like to modify?
✕Common Mistakes
¿Puedo cambiar el detalle de mi reserva?
‘Detalle’ is singular; the phrase refers to multiple items, so use the plural ‘detalles’.
¿Puedes cambiar los detalles de mi reserva?
When asking for yourself, use ‘puedo’, not the second‑person form ‘puedes’.
¿Puedo el cambio de los detalles de mi reserva?
‘Cambio’ is a noun; after ‘poder’ you need the infinitive verb ‘cambiar’.
↔Alternatives
¿Es posible modificar los datos de mi reserva?
Is it possible to modify the data of my reservation?
¿Podría actualizar la información de mi reserva?
Could I update the information of my reservation?
Quisiera cambiar algunos datos de mi reserva.
I would like to change some details of my reservation.
Cultural Tip
In many Spanish‑speaking countries a more formal tone is preferred when speaking with customer‑service agents, so you might say “¿Podría cambiar los detalles de mi reserva?” instead of the more casual “¿Puedo…?”. Also, keep in mind that some airlines or hotels have strict policies about changes, so be ready to provide your reservation number.