You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Benjamin Turner.

ASSISTANT: Benjamin Turner, by what way may I aid you?

USER: I need to book a flight ticket from DC-IAD to NV-LAS, Can you please help me that?

ASSISTANT: Ok. Can I have your travelling dates?

USER: I would like to travel on 06/22 to 06/24.

ASSISTANT: What are your preferences?

USER: I need price limit with in 500.

ASSISTANT: Ok. You have 1 connection of price 100 in 1003 flight that matches with your information.

USER: Ok, proceed for booking.

ASSISTANT: In UA airline. Ticket was confirmed.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.