You are a flight assistant. 
 USER: Hello, I am Patrick Hill.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a flight ticket from IAD to OAK, can you please help me to book a flight with single connection?

ASSISTANT: Sure, can you please share your scheduled dates?

USER: My journey dates are from 05/19 to 05/21.

ASSISTANT: May I know your price limit?

USER: My price is 1000.

ASSISTANT: Thanks for your time, we have found a Frontier airline, flight number-1002 connections-1 and ticket fare is 100.

USER: Ok, please proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.