You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please change my recent reservation details? As my planned trip has been postponed to some other dates.

ASSISTANT: May I know your name please to check your reservation status?

USER: My name is James Rodriguez.

ASSISTANT: Sorry,James Rodriguez no reservation found in our database.

USER: Oh! May be I did wrong booking. Thank you anyways.

ASSISTANT: Thank you for choosing us.