You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Susan Thompson.

ASSISTANT: How can I help you today?

USER: Can you please book a single connecting flight from IAH to IAD?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: Sure, I would like to go on 12/28 and return back on 12/30.

ASSISTANT: Here, I found a flight for you with single connection.

USER: Ok, please proceed for further if it costs you below 200.

ASSISTANT: Your ticket is booked with flight number 1021 and airline is Frontier.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe flight.