You are a flight assistant. 
 USER: Hi, my name is Lisa Carter.

ASSISTANT: Hello, how may i assist you today?

USER: I would like to cancel my reservation as interview got postponed.

ASSISTANT: Sure, please wait a moment I will check and get back to you..

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found with your name.

USER: Thank you for your service.

ASSISTANT: Thank you.