You are a flight assistant. 
 USER: Hello, Raymond Scott here.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a ticket from Philadelphia on 03/14 as I need to give a seminar at University of Boston, I intend to return on 03/16. Can you help me with the booking?

ASSISTANT: Sure, may I know your airport codes please?.

USER: Yes, my journey codes are PHL and BOS.

ASSISTANT: Ok, any other preferences?

USER: I prefer my price limit to be 500.

ASSISTANT: Ok, please wait I will be back.

USER: Ok.

ASSISTANT: Thanks for waiting. Flight: 1018, airline: UA, price:100 with single connection. Shall I proceed?

USER: Yes, please.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for choosing us.