You are a flight assistant. 
 USER: Hi, I am William Roberts.

ASSISTANT: Hello, how can I serve you now?

USER: I need to visit Washington DCA to enjoy taste of DC segway tour. Can you make a reservation on 09/13?

ASSISTANT: Sure, please share me your return journey dates?

USER: Sure, I need to return on 09/15.

ASSISTANT: May I know your source point?

USER: Sure, my stating point is LAS.

ASSISTANT: Do you need a halt in between the journey?

USER: Yes, I need a halt.

ASSISTANT: Thank you for the details, I found a connecting flight 1005 of airline Frontier and fare is 100. Shall I proceed with booking?

USER: Yes, you can.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.