You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

USER: I am Catherine Anderson. Due to some problems my trip was cancelled so can you please cancel my flight ticket?

ASSISTANT: Sure, I will help you about that Catherine Anderson.

USER: Thank you for your response.

ASSISTANT: I have found a reservation with your name are you want to cancel it?

USER: Please cancel.

ASSISTANT: As per your request, I have cancelled your reservation.

USER: Thank you for your service.

ASSISTANT: You are welcome, thank you for opting our service.