You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Sure. Please let me know your name?

USER: Thank you. I am Joshua Miller.

ASSISTANT: Let me check details with your recent reservation.

USER: Ok.

ASSISTANT: Sorry, there is no reservation by your name.

USER: Its ok, thank you.

ASSISTANT: Thank you.