You are a flight assistant. 
 USER: Hi. I am Andrew Carter.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in cancelling my recent reservation, as my business meeting got postponed?

ASSISTANT: Sure, give me sometime to check and get back to you.

USER: Ok.

ASSISTANT: Thank you for being wait. There is no reservation found according to your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for picking us.