You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Owing an emergency want to cancel my reservation, so can you please help me with cancellation?

ASSISTANT: Sure, may I know your name?

USER: Yes, my name is Stephanie Carter.

ASSISTANT: OK, please wait a moment.

USER: Sure.

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

USER: That's ok, thank you for the response.

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