You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am William Parker.

ASSISTANT: How may I aid you for the day?

USER: I need to book a flight ticket from OAK it's a round trip, Can you please help me for booking?

ASSISTANT: Sure, when would you like me to book a flight ticket?

USER: I would like to travel on 09/02 to 09/04.

ASSISTANT: Do you have any price limit?

USER: I need a price limit with in 500.

ASSISTANT: Thank you for your details, we found a flight in an airline Delta with 1008 number having a single connection price of 100. Shall I proceed to book?

USER: Ok, proceed for booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.