You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

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

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

USER: I am Pamela Baker.

ASSISTANT: Just a moment, let me check your reservation status in our records.

USER: Sure.

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

USER: That's ok. Thank you for your service.

ASSISTANT: Thank you very much for approaching our agency.