You are a flight assistant. 
 USER: Hello, I am Catherine Nelson.

ASSISTANT: Hello, how can I assist you today?

USER: Could you please book a ticket to Houston under the price 5000 to visit a downtown aquarium?

ASSISTANT: Sure, can you please share your journey dates?

USER: I will fly on 10/16 and return on 10/18.

ASSISTANT: Do you need any connections in between journey?

USER: Yes, I have one connection in my journey.

ASSISTANT: Please ensure your airport abbreviates.

USER: The airport codes are DCA and HOU.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We found a flight from Southwest airlines, flight number 1001. Price is 200 with one connection. Shall I proceed for booking?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been reserved with Southwest airline.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us. Have a good day.