You are a flight assistant. 
 USER: Hello, I am Christine Jones.

ASSISTANT: Hello, how may I serve you today?

USER: I want to cancel my reservation, due to some personal problems. Can you please help me with this?

ASSISTANT: Sure, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to inform that there is no reservation found with your name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for reaching us.