You are a flight assistant. 
 USER: Hi. I am David Wilson.

ASSISTANT: Hello, how can I be of your help?

USER: I want to book a flight ticket to attend an cultural fest at TX-HOU from DC-DCA. Can you help me?

ASSISTANT: Sure, may I know your scheduled dates of travel?

USER: 10/21 and 10/23 are my travelling dates.

ASSISTANT: Do you need a connection within your journey?

USER: I need a connecting flight.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: We found a Southwest airline with flight number 1016 and price of 100.

USER: You can reserve it.

ASSISTANT: Your booking is done.

USER: Thank you for choosing us.

ASSISTANT: Thank you for availing us.