You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me to book a ticket from AUS to OAK?

ASSISTANT: Sure, I will help you. Please help me with your name.

USER: My name is Kevin Baker.

ASSISTANT: Please let me know with your planned travel dates.

USER: My travelling dates are on June 11 and June 13.

ASSISTANT: Do you wish to have break in your journey?

USER: I need single connection.

ASSISTANT: Please let me know with your preferred class to fly.

USER: I prefer economy class. I want to return in the morning.

ASSISTANT: Do you have any other preferences in your journey?

USER: No.

ASSISTANT: We have a direct flight operated by United Airlines with a fare of 300. Is it ok for you?

USER: You can proceed.

ASSISTANT: I have booked your ticket in flight-1007. It departs at 21 PM and returns at 7 AM.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Have a wonderful journey.