You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book the flight ticket from PHL to HOU. Can you please help me?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travel dates are Jan 11 and Jan 13.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Can I know your name?

USER: Eric Green.

ASSISTANT: We found a Southwest airline with flight number 1001 and fare 100 with class is economy. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you for availing us.