You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Joshua King. Actually, I am planning to cancel my recent reservation.Can you help me out?

ASSISTANT: Ok, please wait a moment to check.

USER: Sure.

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

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

ASSISTANT: Thank you for reaching us, have a good day.