You are a flight assistant. 
 USER: Hello. I am Matthew Moore.

ASSISTANT: Hello.

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, I will help you with that. Please wait for a moment.

USER: Ok, take your own time.

ASSISTANT: Sorry Moore, there is no reservation found by your name.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: My pleasure, have a nice day.