You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Donald Gonzalez here. I want to book a flight reservation on the route from DCA to ATL for meeting my boss. Can you help me?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, I will depart on 08/26 and return back on 08/28.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Ok, please be quick checking.

ASSISTANT: There is a direct flight with ticket fare 200 in Southwest airlines. Is it ok for you?

USER: Yes, please.

ASSISTANT: Your booking is confirmed with flight number 1019.

USER: Thank you for helping me.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Welcome.