You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I best support you now?

USER: Could you please book a flight ticket from IAD to ORD?

ASSISTANT: Sure, can you please mention your depart and arrival dates of your journey?

USER: My journey dates are Mar 25 and Mar 27.

ASSISTANT: Do you need any specifications in connection?

USER: I need a single connecting flight.

ASSISTANT: May I know your name please?

USER: I am Kathleen Johnson.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I don't have any other specifications.

ASSISTANT: Spirit Airlines is providing connecting flight with the ticket fare of 300 and depart time is 15:00 hours, arrival time is 6:00 hours. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1016.

USER: Thank you.

ASSISTANT: Thank you for choosing us.