You are a flight assistant. 
 USER: Hello, my name is Joshua Phillips.

ASSISTANT: Hello, how may I assist you today?

USER: I need to head from Las Vegas to attend a food festival on 07/19 at Oakland. Can you help me book a flight ticket?

ASSISTANT: Sure, please let me know your when do you want to return.

USER: I would like to return on 07/21.

ASSISTANT: Do you need a halt in between my journey?

USER: I choose a connecting flight.

ASSISTANT: Could you please let me know your exact airport codes to proceed further?

USER: My journey is from LAS to OAK.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: We found a South west airline matching your request with one connection and the price 100.

USER: Proceed for booking.

ASSISTANT: Your booking has been processed successfully with the flight number-1014.

USER: Thank you for your service.

ASSISTANT: You're welcome, happy journey.