You are a flight assistant. 
 USER: Hello, I am Helen Green.

ASSISTANT: Hello, how may I assist you?

USER: As, I am fallen sick suddenly due to bad weather conditions, I would like to cancel my recent reservation. Can you help me in this?

ASSISTANT: Sure, we are here to help you. Give me a minute.

USER: Sure.

ASSISTANT: Thank you for your patience. There is no reservation found on your name.

USER: It's ok, not a problem. Thank you for your information.

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