You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I give assistance to you?

USER: I want to cancel my reservation due to bad weather conditions at my destination place, so please help me.

ASSISTANT: Sure, we are glad to help you with cancellation.

USER: Thank you.

ASSISTANT: To check your previous reservation, May I know your name?

USER: Sure, I am Mary Jackson.

ASSISTANT: Thanks for providing your name, please standby.

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting, we found a reservation on your specified name. Shall I proceed for cancellation?

USER: You can proceed.

ASSISTANT: Sure, your ticket has been successfully cancelled.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.