You are a flight assistant. 
 USER: Hello, this is Michael Smith.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my recent reservation due to some changes in weather conditions. Can you help me in that?

ASSISTANT: Sure, we are here to assist you. Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, there is no reservation found in your name.

USER: Ok, it is not an issue. Thank you.

ASSISTANT: Thank you for choosing us, have a good day.