You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: My name is Matthew King.

ASSISTANT: Yes Matthew, how may i assist you?

USER: As the summer is so horrible that I can't travel to Charlotte, so I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Wait for a moment please.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found with the name Matthew King.

USER: That's ok. Thank you for your time.

ASSISTANT: Thank you for reaching us.