You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Robert Scott here. Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: Not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.