You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, can I know your name please?

USER: I am Debra Brown.

ASSISTANT: Ok Debra, what kind of assistance are you expecting from our side?

USER: I would like to cancel my reservation, because suddenly my interview got postponed due to heavy rains in my travel location, could you please help me out with cancelling of my existing reservation?

ASSISTANT: Sure, I will definitely guide you with that.

USER: I am glad to hear that.

ASSISTANT: Please give me a moment while I check for any active reservations with your name in our database.

USER: Sure, please take your finest time.

ASSISTANT: Thank you for waiting.

USER: It's alright.

ASSISTANT: Unfortunately, there is no reservation found with your name in our database.

USER: Ok, no problem. I believe my reservation has already been cancelled.

ASSISTANT: Do you need any other help from our end?

USER: No. I am very much fulfilled with the service you had provided.

ASSISTANT: Debra, if you are satisfied with my response, please leave your valuable feedback in our feedback form which you will receive in your registered mail after the conversation.

USER: Sure, I will be much obliged to give the feedback.

ASSISTANT: Thank you Debra, have a great day ahead.

USER: You are welcome. Thank you for your service.