You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I need to to cancel my ticket due to my health issue, can you help me with that?

ASSISTANT: Sure, I am here to help you. May I know your good name?

USER: I am Jessica Phillips.

ASSISTANT: Sorry, we did not find any active reservation on your name in our records.

USER: That's ok. Thank you.

ASSISTANT: Thank you for opting us.