You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Matthew Mitchell.

ASSISTANT: How can I help you?

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

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: Matthew Mitchell, I could not find any reservation by your name.

USER: That's ok.

ASSISTANT: Sorry for the inconvenience.

USER: Anyways, thank you for your help.

ASSISTANT: Have a nice day.