You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Is there any availability of flights from DCA to HOU to meet my childhood friend?

ASSISTANT: Sure, let me know your planned journey dates?

USER: My trip dates are on Dec 20 and 22.

ASSISTANT: Do you have any connection limit?

USER: I need a stopover.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Can I know your name?

USER: My name is Susan Gonzalez.

ASSISTANT: We found a connecting flight 1009 in United airline with fare 100 and class is economy. Shall I proceed with booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Than you for availing us.