You are a flight assistant. 
 USER: Hi, I am Joshua Brown.

ASSISTANT: Hello, how may I help you?

USER: To attend my grand parents 60th anniversary at Las Vegas, NV-LAS on 02/08 from New York, NY-JFK, can you help me to book a flight ticket?

ASSISTANT: Sure, may I know your return date to proceed?

USER: My return date would be on 02/10.

ASSISTANT: Ok, we have a Delta airline with flight number 1020 and price of 100 available for you matching all your particulars. Shall I book the ticket?

USER: Ok, you can proceed.

ASSISTANT: Your booking has been confirmed. Thank you for choosing us.

USER: Thanks for your help.