You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: Andrew Williams is my name.

ASSISTANT: How can I provide assistance to you?

USER: Due to climate issue, I need to cancel my recent reservation. Can you please help me in cancelling my reservation?

ASSISTANT: Sure, Please wait I will check the reservation and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found with your name.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing our service.

USER: Thanks for your information.