You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Patrick Hall. Owing an emergency want to cancel my reservation, can you help me with it please?

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Ok.

ASSISTANT: Sorry to say, no reservation found on your name in my database.

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

ASSISTANT: Thank you for reaching us, have a nice day.