You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book a ticket, could you please help me in booking?

ASSISTANT: Sure,please provide your travelling locations.

USER: I want to travel from GA-ATL to CA-LAX.

ASSISTANT: May I know your trip dates?

USER: My trip dates 05/29 and 06/02.

ASSISTANT: Do you have any other specifications?

USER: I want flight with one connection and price maximum 200.

ASSISTANT: May I know your name for further process?

USER: I am Dennis Harris.

ASSISTANT: OK,Dennis Harris please wait a moment.

USER: Sure take your own time.

ASSISTANT: Sorry Dennis Harris, unfortunately there is no flight with your requirements.

USER: Anyway, thanking you for help.

ASSISTANT: Your welcome.