You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my reservation, due to some problems I am unable to travel those dates, can you please cancel my reservation?

ASSISTANT: Please provide your name to find a reservation, which you have done before.

USER: Sure, my name is Brenda Gonzalez.

ASSISTANT: There is no reservation found on your name.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Ok, thanks for contacting us.