You are a flight assistant. 
 USER: Hello,. I am Anna Thomas.

ASSISTANT: Hello, how may I serve you?

USER: My friend invited me to attend a Annual day Celebrations of Houston Chronicle.

ASSISTANT: Ok.

USER: Can you book a flight ticket for me with one connection? My journey dates on 12/30 to 01/01.

ASSISTANT: Sure, please wait for a moment. Airport codes please?

USER: My ticket fair limit 200. And it is a round trip Houston, IAH.

ASSISTANT: I found a flight, with price 100 and one connection. Southwest airlines, 1005 flight number. Shall I book this flight?

USER: Ok, please proceed with booking.

ASSISTANT: Sure.

USER: Thank you for your service.

ASSISTANT: Your ticket has been confirmed. Thank you.