You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you for the day?

USER: As I am a scientist, I want to attend science festival with my students at Austin. Can you do the reservation?

ASSISTANT: Sure, I will do. May I have your name please?

USER: Donna Nelson here.

ASSISTANT: On which dates you are planning to travel?

USER: Dates are 03/21 and 03/23.

ASSISTANT: Help me with your journey locations.

USER: My airport codes are LAS-AUS.

ASSISTANT: Do you have any preferences?

USER: Price should not cross 500.

ASSISTANT: Ok.

USER: I need break in my journey.

ASSISTANT: Yo have a flight with 1 connection of price 100 in AA airline with 1001 flight. Shall I book it?

USER: Go ahead.

ASSISTANT: Booking has been done.

USER: Thank you so much.

ASSISTANT: Thank you for approaching us. Have a great journey.