You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Assist me in booking a flight ticket from OAK to AUS.

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: I prefer to travel in between June 23 and June 25.

ASSISTANT: Do you need any break?

USER: Connected flight is required.

ASSISTANT: May I know your name?

USER: I am David Williams.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: We found a connecting flight with an UA airlines, flight number:1018.

USER: Proceed to book it.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thanks for booking.

ASSISTANT: Thank you for reaching us.