You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What help that I can do for you?

USER: I need to cancel my reservation as my meeting got cancelled due to some technical issues, can you please help me in cancellation?

ASSISTANT: Sure, I can help you with that one and can you please let me know your name please?

USER: I am Joshua Mitchell.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found for the user name in our data base to cancel it.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are most welcome and thank you for consulting us.