You are a flight assistant. 
 USER: Hi. Jason Brown here.

ASSISTANT: Hello, how can I serve you today?

USER: Can you cancel my flight ticket reservation? As my business trip which was to he held in Los Angeles has been postponed to next month.

ASSISTANT: Sure, I will help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, we found a reservation on your name. Shall I cancel it?

USER: Sure, you can go ahead and cancel it.

ASSISTANT: Your flight ticket has been cancelled.

USER: Thanks for your help.

ASSISTANT: Thank you for availing us.