You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Jessica Collins. I want to cancel my recent reservation due to my health issue, so can you please help me with this?

ASSISTANT: Please wait a while.

USER: Sure.

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

USER: No problem, thank you for your information.

ASSISTANT: Thank you for opting us.