You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I provide service to you? May I know your good name please?

USER: I am Samantha Mitchell and I want to cancel my reservation due to the heavy rainfall. Can you please help in this?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: We are sorry  to notify that, we did not find any reservation against your name. Thank you for reaching us. Have a nice day.

USER: Thank you.