You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my trip due to 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 Edward Brown.

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

USER: Sure.

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

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

ASSISTANT: Thank you very much for contacting our agency.