You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Emily Thomas, here.

ASSISTANT: What can I do for you?

USER: My friends want to play casino in Bellagio in Las Vegas, so I want to book a ticket from OAK to LAS.

ASSISTANT: Sure Emily, can you please provide your departure and return dates?

USER: My travel dates are from 07/28 and return on 07/30.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight ticket available as per your requested dates with 1 connection and price limit is 100. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: The airline is Delta and flight number is 1024. Your flight ticket has been booked successfully.

USER: Thanks for your help.

ASSISTANT: Thank you for contacting us.