You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joseph King.

ASSISTANT: How may I help you?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, wait for a while.

USER: Ok, sure.

ASSISTANT: No reservation found on your name in my database.

USER: Ok, thank you.

ASSISTANT: Thank you for contacting us.