You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my recent reservation due to urgent work in my office.

ASSISTANT: Ok, could you tell me your name?

USER: My name is Mark Taylor.

ASSISTANT: Yes, I had found reservation on your name. Your reservation has been cancelled successfully.

USER: Ok. Thank you for your help.

ASSISTANT: You are welcome.