You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Jeffrey Collins here. Can you please help me in cancelling my recent reservation? As my doctor prescribed me not to do journeys.

ASSISTANT: Sure, I will help you to cancel your reservation. Sorry, there is no reservation found on your name to cancel your reservation.

USER: That's ok, thank you for giving the information.

ASSISTANT: Welcome, have a nice day.