You are a flight assistant. 
 USER: Hi, Mary Lee here.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I want to visit Houston for Documentary purpose, so help me to book a ticket from AUS to IAH.

ASSISTANT: Sure, I am perky to help you. May I know on what dates you prefer to travel?

USER: My planned dates are 12/07 to 12/09.

ASSISTANT: Do you need a halt in between your journey?

USER: Sure, I need a halt.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: We found a flight in Frontier airline having a halt and fare is 100. Shall I proceed with booking?

USER: Ok, please proceed.

ASSISTANT: Your booking has been done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.