You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: As I am a scientist, I want to attend science festival with my students at Oakland.

ASSISTANT: Ok.

USER: Can you do the reservation?

ASSISTANT: Sure, we are happy to help you. May I know your journey dates?

USER: Dates are 09/11 and 09/13.

ASSISTANT: Kindly, mention your price limit.

USER: I can spend money for a ticket maximum 200.

ASSISTANT: Please, share your source and destination airport codes.

USER: My airport codes are AUS-OAK.

ASSISTANT: May I know your good name for further process?

USER: Alexander Hall here.

ASSISTANT: You have a flight with airline UA and flight number is 1018 with 1 connection and price is 200. Can I reserve your seat?

USER: Please do the booking.

ASSISTANT: Your reservation is done.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us, have a nice day.