You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

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

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Can I know your name to check your previous reservation?

USER: I am Virginia Parker.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Sorry, I didn't find any reservation on your name in our database to cancel your reservation.

USER: That's ok. Thank you for checking.

ASSISTANT: Thank you for approaching us, hope you have a great day.