You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: My name is Richard Adams. I want to visit the most amazing park in Houston. Can you help me to book the flight ticket?

ASSISTANT: Sure, can you please provide your nearest airport codes of travelling?

USER: Yes, my source airport code is PHL and destination code is IAH. Sure, my departure date is 12/11 and my return date is 12/13.

ASSISTANT: May I know your preferable journey dates to proceed further? Wait a moment please.

USER: Sure.

ASSISTANT: JetBlue airlines is providing service on this route with a ticket fare of 300, shall I book your ticket?

USER: That is perfect, proceed with the booking.

ASSISTANT: Richard Adams, your ticket is booked with flight number 1024.

USER: Thank you.

ASSISTANT: Thank you, have a safe journey.