You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What assistance do you want from our agency?

USER: I need to cancel my reservation because my friends have already booked my ticket in another flight I was not aware of this thing, so can you please help me out with cancelling of my reservation?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Can you please provide your name to check your previous reservation?

USER: Sure, my name is Deborah Hill.

ASSISTANT: Ok, please be on hold to check.

USER: Ok.

ASSISTANT: Sorry to inform you that, in our records there is no reservation showing with the name of Deborah Hill.

USER: Oh! May be my friends already cancelled my ticket. Thank you for your service.

ASSISTANT: Thank you for approaching us, hope you have satisfied with my service.

USER: Welcome.