You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Please help me to book a flight ticket from HOU to PHL.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: May I know your planned travel dates?

USER: My travel dates are from Feb, 06 to Feb, 08.

ASSISTANT: Is there any class preference for you?

USER: I prefer an economy class to fly.

ASSISTANT: Your good name please.

USER: Stephanie Hill.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found an airline: American Airlines, flight number: 1009 and price is 200 with one connection.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.