You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Margaret Lewis.

ASSISTANT: How may I aid you?

USER: Due to heavy rainfall, I couldn't travel out. Can you help me in cancelling my reservation?

ASSISTANT: Sure, I am here to help you. Sorry, there is no reservation found on your name. Thanu.

USER: It's ok, no issues. Thank you for the information.