You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Michael Nelson. Due to heavy rainfall I want to cancel my reservation. Will you help me in cancelling reservation?

ASSISTANT: Sure, I will help you to cancel your air ticket. Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you there is no any reservation found on your name.

USER: Thank you, for your good service.

ASSISTANT: Thank you, have a nice day.