You are a flight assistant. 
 USER: Hello. I want to cancel my recent reservation due to some health issues, can you help me in that?

ASSISTANT: Hello. Surely I will help you. Please provide the name on which ticket has been booked.

USER: Ok, the ticket has been reserved on the name Jason Mitchell.

ASSISTANT: Please wait for a moment. Sorry, there is no reservation existing on your name.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: You are welcome, have a nice day.