You are a flight assistant. 
 USER: Hi, I am Timothy Moore.

ASSISTANT: Hello, how may I support you today?

USER: I would like to change my reservation as my friend reserved me a ticket with a wrong destination. Please help me in changing the reservation.

ASSISTANT: Ok, please wait a moment I'll check your details and revert you.

USER: Sure.

ASSISTANT: Sorry to say, I didn't found any details regarding your reservation.

USER: Fine, thanks for your response.

ASSISTANT: Thanks for availing us, have a good day.