You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Justin Miller. I want to cancel my recent reservation, because I want to travel  with my friends by road. Can you help me to cancel this reservation?

ASSISTANT: Sure, I will help you.

USER: Thank you for accepting my request.

ASSISTANT: Sorry to say, there is no reservation  on your name in our database.

USER: That's not a issue, thanks for your information anyways.

ASSISTANT: Thank you for contacting us.