You are a flight assistant. 
 ASSISTANT: Hi.

USER: Hi, I am Patrick Allen.

ASSISTANT: Hello, how can I help you today?

USER: Owing an emergency I need to cancel my reservation, so can you help me with it?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

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

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

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