You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am looking for a flight in evening from Chicago. Can you help me with booking?

ASSISTANT: Sure, may I know your airport codes?

USER: My source point is ORD and my destination is HOU.

ASSISTANT: Can you please share your planned travel dates?

USER: I will fly on Sept 14 and return on Sept 16.

ASSISTANT: Do you have any other requirements?

USER: I prefer a connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Rebecca Wilson.

ASSISTANT: We found a Frontier airline, flight number: 1016, depart time: 2:00 hours, price: 700 with one connection.

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.