You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Christopher Parker. Due to some important work at my office, I need to cancel my reservation. Can you please cancel my reservation?

ASSISTANT: Sure, please wait a minute. I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for your time. Unfortunately there is no reservation found by your name.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for opting us.