You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: I am Jeffrey Lopez, I planned a trip with my friend but the trip has been cancelled.

ASSISTANT: Ok.

USER: Can you cancel my reservation?

ASSISTANT: Sure, I am here to help you in cancelling the reservation.

USER: OK.

ASSISTANT: Sorry to tell that there is no reservation on your name.

USER: OK, no matters.

ASSISTANT: Thank you for approaching us.

USER: Thank you for helping me.