You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

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

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

USER: I am Jeffrey Miller.

ASSISTANT: Please wait for a while, let me check your reservation status in our records.

USER: Sure.

ASSISTANT: Sorry for inconvenience, no reservation is found under your name.

USER: That's ok. Thank you.

ASSISTANT: Thank you very much for approaching our agency.