You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I want to book a flight ticket from LAS to IAH. Could you help me in booking?

ASSISTANT: Sure, please send your travelling dates.

USER: My travelling dates are from Aug 14 - 16.

ASSISTANT: Do you have any preferences?

USER: I prefer for connecting flight.

ASSISTANT: May I know your name please?

USER: Helen Anderson.

ASSISTANT: There is a connecting flight available with Southwest airline, shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your booking is done with flight number 1010. Happy journey.

USER: Thank you.

ASSISTANT: YOu are welcome, have a nice day.