You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Is this travelling agency?

ASSISTANT: Yes, your in right place.

USER: Laura Garcia here. Recently, I reserved a flight ticket as there are few seats with more fare.

ASSISTANT: Ok.

USER: Now, there is a special flight for my route with low fare, can you cancel my ticket?

ASSISTANT: Sorry, there is no reservation found.

USER: I think I have done any mistake in my reservation. Anyway, thanks a lot.

ASSISTANT: Welcome.