You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I want to cancel my ticket reservation due to some problems, can you cancel my ticket?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know the name on which you reserved earlier?

USER: My name is Barbara Clark.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Your reservation has found and successfully cancelled.

USER: Ok, thank you for your quick help in my ticket cancellation.

ASSISTANT: Thank you for choosing us, have a good day.