You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jessica Allen here.

ASSISTANT: How can I help you?

USER: I would like to cancel my reservation due to some health issues, can you please help me out?

ASSISTANT: Please wait a while. Sorry to say, there is no reservation on your name in our database.

USER: That's ok, no problem. Thank you for checking out.

ASSISTANT: Thank you for opting us.