You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Do you deal in flight reservations?

ASSISTANT: Sure.

USER: I think you can help me in cancelling a flight reservation.

ASSISTANT: Sure, I will help you that. But, give me a minute.

USER: I am Christine Miller and next week I had a board meeting with my board members. But had to postpone it.

ASSISTANT: Sorry to say that there is no reservation found.

USER: Ok. It is not a problem. Thanks for helping me.

ASSISTANT: Thank you for contacting us.