You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Catherine Adams.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: No problem, Thanks for the information.

ASSISTANT: Welcome, have a nice day.

USER: Thank you for opting us.

ASSISTANT: Thank you for choosing us.