You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may  help you?

USER: Myself Jeffrey Hall. I have some emergency, can you book a direct flight for me?

ASSISTANT: Sure, I will definitely help you. Can you provide your nearest airport codes?

USER: My airport codes are DEN and BOS.

ASSISTANT: Please share your preferable journey dates.

USER: My travelling dates are 04/14 and return date is on 04/16.

ASSISTANT: Please hold on for a while.

USER: Make sure that my price should not exceed 500.

ASSISTANT: There is a direct flight available for you with price 300, shall I make your booking?

USER: Yes, please proceed for booking.

ASSISTANT: Your ticket is booked, flight number is 1001.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for connecting with us.

USER: Welcome.