You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you now?

USER: Due to heavy rains, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Could you please tell us your name?

USER: Sure, myself Sarah Lee.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry Sarah, no reservation found under your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: My pleasure, have a good day.