You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, may I know your name?

USER: I am Kevin Collins.

ASSISTANT: Ok, please wait. I will check the reservation status and revert to you.

USER: Sure.

ASSISTANT: Sorry, we couldn't find a reservation on your name.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.