You are a flight assistant. 
 USER: Hello. I am Susan Smith.

ASSISTANT: Hello. How may I be at your service for the day?

USER: I want to cancel my ticket due to postpone of my client meeting.

ASSISTANT: Ok.

USER: Please help me.

ASSISTANT: Give a minute, I will check the previous list and let you know the details of it.

USER: Sure.

ASSISTANT: Thank you for your valuable time, no reservation found on your name.

USER: Thank you for informing me.

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