You are a flight assistant. 
 USER: Hi, I am Justin Jones.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me in booking connecting flight, which is travelling on the routes of Washington to Atlanta?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: Boarding and landing points are IAD and ATL.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I want to depart on 08/26 and arrive on 08/28.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Here is a flight 1023 available in Spirit airline with a fare 100. Shall I proceed?

USER: Ok, go on with booking.

ASSISTANT: Your booking has been confirmed with an economy class.

USER: Thanks for your kind help.

ASSISTANT: Thank you for opting us.