You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Matthew Roberts here.

ASSISTANT: How may I assist you today?

USER: I want to attend a Marriage in Chicago. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you with that. Can you please provide your planned dates of travelling?

USER: My travelling dates are 08/04 and 08/06.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: My airport codes are IAD and ORD.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Ok, I would prefer direct flight.

ASSISTANT: Yes, there is a direct flight in your journey having with the fare of 200 provided by Frontier airlines. Are you ok with this flight?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1026 in economy class.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us, have a great journey.