You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I would like to cancel my reservation due to some personal reason. Can you help me in this?

ASSISTANT: I understand your request and will be happy to help you.

USER: Thanks.

ASSISTANT: Could I have your name please?

USER: Myself Cynthia King.

ASSISTANT: Sorry King, there is no reservation matching with your name in our portal to cancel further.

USER: Oh! That's fine, thank you for checking.

ASSISTANT: Thank you for consulting us, hope you choose our agency for your future ventures.