You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: My name is Helen Thomas, and want to book a ticket from TX-HOU to GA-ATL.

ASSISTANT: OK, may I know your travel dates?

USER: Sure, my travelling dates are from 10/23 to 10/25.

ASSISTANT: Is there any additional requirements do you have?

USER: Yes, my connection limit is 1 of cost 500. Do you find any ticket for me?

ASSISTANT: OK, the flight number 1002 from Southwest airline is exactly matches your requirements. Shall I proceed for booking?

USER: OK, please book it for me.

ASSISTANT: Your ticket has been successfully confirmed.

USER: Thank you, for your help.

ASSISTANT: Thank you for choosing our help.