You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Timothy King.

ASSISTANT: How may I help you?

USER: Can you book a flight ticket with a connecting flight? I need a ticket under the range of 1000.

ASSISTANT: Sure, may I know about your trip?

USER: My holiday trip starts from IAD to BOS.

ASSISTANT: Can you share your locations? Can you share your dates?

USER: And travelling dates are 08/07 and 08/09.

ASSISTANT: There is a flight exactly matched with your criteria, with the flight number 1002 on Frontier airline. Shall I proceed?

USER: Ok, You can proceed.

ASSISTANT: Ok, your ticket has been reserved successfully.

USER: Thanks for your support.

ASSISTANT: Welcome, have a nice day.