You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Mary Parker. I want to book a ticket from AUS to SFO, can you help me?

ASSISTANT: When you are willing to travel?

USER: My travel dates are Sept 15 and Sept 17.

ASSISTANT: There is a connecting flight-1001 with price 200, shall I proceed with UA airlines?

USER: You can book it.

ASSISTANT: Ok, your ticket has been done on your name.

USER: Thank you for booking.

ASSISTANT: Thanks for choosing us.