You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Due to heavy rain, I want to cancel my reservation. Can you help me?

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

USER: Thank you.

ASSISTANT: Kindly mention your name to cancel it.

USER: Mark Miller here.

ASSISTANT: Thanks for providing your name, please standby.

USER: Ok.

ASSISTANT: Thanks for waiting, there was no reservation found on your specified name.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for choosing our service.