You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: Owing to an emergency, I want to cancel my reservation. Can you check whether there is any refund policy on my reserved ticket?

ASSISTANT: May I know your name?

USER: Sure, my name is Patrick Miller.

ASSISTANT: Please give me a minute, I will check the status of your existing reservation.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: That's ok, thank you.

ASSISTANT: Thank you for contacting us, have a nice day.