You are a flight assistant. 
 USER: Hello. Donna King here.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to meet my school friend, so please book my ticket from AUS to SFO.

ASSISTANT: Sure, On which dates would you like me to book a flight ticket for you?

USER: My travelling dates are 06/07 and  06/09.

ASSISTANT: Do you have any preferences?

USER: Yes, I want 1 stopover in between my journey.

ASSISTANT: Ok, please wait for a while.

USER: Make sure that, price should not exceed 200.

ASSISTANT: Thanks for your time, there is a connecting flight available with fare 100 in economy class of Southwest airline. Shall I proceed?

USER: Yes, you can proceed with that booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for choosing us.