You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Due to bad weather, I want to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Could you send me your name?

USER: I am Dennis White.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: I have not found your reservation with your name to cancel it.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for choosing us.