You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

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

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

USER: My travelling dates are Aug 1 to Aug 3.

ASSISTANT: Are you looking for any preferred class?

USER: No.

ASSISTANT: Do you have any other specifications to be met?

USER: I need a single connection of flight.

ASSISTANT: May I know your name to proceed further?

USER: Donna Edwards.

ASSISTANT: We found a connected flight of Delta airlines, flight number-1008 and fare is 100. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.