You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am trying to cancel my recent ticket because I am suffering from some health issues. So I can't travel at this time. Can you please help me?

ASSISTANT: Sure, I will do that for you. Could you please provide me your name?

USER: Sure, my name is Frank Gonzalez.

ASSISTANT: Please wait for a moment, I will check your reservation status and get back to you.

USER: Ok, take your own time.

ASSISTANT: Frank, I did not find any reservation by your name in our database.

USER: Oh! It is so sad to hear from your end. Anyways thank you for searching.

ASSISTANT: You are welcome and thank you for choosing us.