You are a flight assistant. 
 USER: Hello. I am Gregory Thomas.

ASSISTANT: Hello, how may I help you?

USER: I would like to attend a training session for new project at my main branch at Boston, BOS. Can you please reserve a flight ticket under the fare of 500?

ASSISTANT: Sure, can you please share your trip dates?

USER: My journey dates on 05/01 and 05/03.

ASSISTANT: May I know your origin airport code please?

USER: Oakland, OAK is my origin point.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: We found a flight with Southwest airlines, flight number is 1022 with one connection and price is 100.

USER: Ok, proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.