You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Joseph Jones.

ASSISTANT: How may I help you?

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

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: Jones, no reservation has been found on your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for your help.