You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: James Scott here. I want to book a ticket from DCA to BOS, will you help me on that.

ASSISTANT: Sure, can I know your travel dates please?

USER: Sure, I would like to travel on 07/22 to 07/24. Make price will not be exceed than 200 and connection limit should be 1.

ASSISTANT: There is a flight for you with price 100 and connection limit as 1. Shall I book it?

USER: Ok, proceed.

ASSISTANT: I have booked your ticket with flight number 1001 and airline is UA.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us, have a safe journey.

USER: Welcome.