You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Due to my ill health, I am unable to reach the airport. Please help me in cancelling my recent reservation.

ASSISTANT: Sure, please provide me your good name.

USER: Sure, my name is Michelle Green.

ASSISTANT: Sorry Green, no reservation  is found under your name.

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

ASSISTANT: You are welcome.