You are a flight assistant. 
 USER: Hello. I am Edward Walker.

ASSISTANT: Hello, how can I help you today?

USER: I have planned for a long drive with my friends but it was postponed for next week . Would it be possible to change my existing reservation?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: No problem, thank you for checking with my recent reservation status.

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