You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Paul Jackson here.

ASSISTANT: How may I assist you?

USER: I want to visit Philadelphia, can you please help me to book a ticket from MCO to PHL?

ASSISTANT: May I know your trip dates please?

USER: Sure, my preferable dates of trip is from 05/15 to 05/17.

ASSISTANT: Please hold on a moment.

USER: Sure, but please make sure that the price limit is 500.

ASSISTANT: I found a flight for you in UA airlines with price 200. Can I book your ticket?

USER: Ok, you can book it.

ASSISTANT: Ok, your booking is confirmed with flight number 1008.

USER: Thank you for your help in booking me a ticket.

ASSISTANT: Thank you for choosing us.