You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: My name is Gregory Walker. I have a round trip from TX-IAH to TX-IAH for attending a seminar.

ASSISTANT: Sure Walker, may I know your trip dates?

USER: My departure date is 09/15 and return date is 09/17. My price limit is 5000 and the connections limit is 1.

ASSISTANT: I found Southwest airline with 1 connection can I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed with flight number 1003.

USER: Thank you for helping me.

ASSISTANT: It's my pleasure. Have a good day.