You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: Due to emergency I need to cancel my recent reservation, Can you please help with that?

ASSISTANT: Sure, may I know your good name please?

USER: I am Gary Walker.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thanks for contacting us.