You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Sandra White, want to travel from AUS to DFW. Please help me in booking my ticket.

ASSISTANT: Mention your trip dates too.

USER: Sure, my travelling dates are from 06/28 to 06/30.

ASSISTANT: There is a connecting flight-1000 on Southwest airlines, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, booking is done with your preferences.

USER: Thank you.

ASSISTANT: Welcome Sandra White.