You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I'm Elizabeth Walker.My business meeting has been cancelled, so I would like to cancel my reservation. Can you please help me with that?

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found with the name Elizabeth Walker.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information. You are welcome.