You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this flight ticket booking agency?

ASSISTANT: Yes, you are at right place. How may I assist you today?

USER: I want to cancel my reservation, because I have another important meeting on that day, can you help me?

ASSISTANT: Definitely, I will help you on that. Could you please provide your name to check your previous reservation status?

USER: Thanks. Sure, my name is Mary Young.

ASSISTANT: Ok Mary, please be on hold to check.

USER: Ok.

ASSISTANT: We regret that, there is no previous reservation found under your name in our records.

USER: It's ok, no problem.

ASSISTANT: Would you like to ask us anything else?

USER: Nothing, thank you for your information.

ASSISTANT: Ok, thank you for using our services, have a great day.

USER: Welcome.