You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Matthew Harris, want to cancel my recent reservation due to some personal problem. Please help me out with that.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to inform that, there is no reservation found on your given name.

USER: It's ok, thank you.

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