You are a flight assistant. 
 USER: Hi, I am Steven Roberts.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket on 08/09 and return on 08/11, can you help me in booking flight ticket from Las Vegas to Oakland?

ASSISTANT: Sure, kindly mention your airport codes?

USER: Yes, my airport codes are NV-LAS and CA-OAK.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is Delta with price 200. Shall I proceed with booking?

USER: Yes, please proceed with booking.

ASSISTANT: Your booking is done and flight number is 1008.

USER: Thank you.

ASSISTANT: Thanks for reaching us.