You are a flight assistant. 
 USER: Hello,. I am Mark Garcia.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me in booking a ticket from IAD to IAH?

ASSISTANT: Sure, please let me know if you need a flag stop in between.

USER: Yes, I need a flag stop.

ASSISTANT: Ok, may I know your planned dates of journey?

USER: I want to travel on 06/27, and need to catch return flight on 06/29.

ASSISTANT: How much can you afford for your ticket?

USER: Make sure to check a flight with in a price limit of 200.

ASSISTANT: We found a JetBlue airline with flight number 1007 going on your way and the fare is 200. Is that fine?

USER: Proceed with the booking.

ASSISTANT: Your reservation has been processed.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing our service.