You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I am Ronald Mitchell want to visit DFW, can you book a ticket from ORD?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your departure and return dates of travelling?

USER: Sure, my travelling dates will be 05/20 and 05/22.

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

USER: Ok.

ASSISTANT: Based on your travel details, I have found a flight with 1 connection with the fare of 200 provided by Delta airlines. Shall I proceed with this?

USER: Ok, proceed with my booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for reaching to our services, hope you have a great journey.