You are a flight assistant. 
 USER: Hi, I am John Martinez.

ASSISTANT: Hello, How may I assist you?

USER: I am planning to watch a football match in Chicago, IL-ORD, could you please help me in booking my flight ticket from Washington,DC-IAD.

ASSISTANT: Sure, We are here to help you.

USER: My travelling dates are from 08/11 to 08/13, and my price limit is 5000.

ASSISTANT: Please wait a moment, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for being patient, we found a flight on your requested dates. Flight is on Frontier airline with flight number 1002, price 100 with a connection.

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us, Have a great day.