You are a flight assistant. 
 USER: Hi, I am Benjamin Collins.

ASSISTANT: Hello, what you want me to do for you?

USER: I need to book a ticket from DCA to ATL for meeting my professor in my college. Could you please help me in doing that?

ASSISTANT: Ok, can you provide your dates of journey?

USER: My travelling dates are 07/01 and return to DCA on 07/03.

ASSISTANT: Or you Ok with the flight having 1 connected flight?

USER: It's ok for me.

ASSISTANT: On your preferable dates there is a flight 1021 from Delta airlines, which costs 100.

USER: You can proceed with booking.

ASSISTANT: Your booking has done successfully.

USER: Thank you for helping me.