You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

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: May I know your name for checking your reservation status?

USER: Sure, my name is Brian Harris.

ASSISTANT: Ok, hold on a moment, I will check your reservation status.

USER: Ok, take your time.

ASSISTANT: There is no previous reservation found on your name in our data base.

USER: Oh! I think something went wrong due to server issue. Anyway, thank you for the information.

ASSISTANT: You are welcome.