You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Andrew Taylor here.

ASSISTANT: How may I hand helping to you at this time?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I can help in ticket cancellation. Please give me a moment.

USER: Ok.

ASSISTANT: There is no reservation status find in our previous booking list.

USER: That's fine. Thanks for checking.

ASSISTANT: You are most welcome and have a nice day.