You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am looking for a flight from HOU to IAD, can you please help me in booking?

ASSISTANT: Ok, I am here to help you with that. Can I know your itinerary dates?

USER: My travelling dates are Sept 04 and Sept 06.

ASSISTANT: Do you have any other requirements?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Can I know your name?

USER: My name is Patrick Miller.

ASSISTANT: Ok, wait for a moment.

USER: Sure.

ASSISTANT: There is a single connecting flight in the Spirit airlines which costs 100 in an economy class type. Could you please confirm me whether to book the ticket or not?

USER: Please proceed.

ASSISTANT: Your flight ticket is confirmed in an economy class and the flight number 1007.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us. Have a safe journey.