You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Myself Jonathan Jackson. I want to cancel my recent reservation, could you please help me out?

ASSISTANT: I will help you with it.

USER: Ok.

ASSISTANT: Sorry Jackson, There is no previous reservation with your details.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for approaching us.