You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Scott Edwards.

ASSISTANT: How may I assist you?

USER: Can you please book a flight ticket to Houston on Mar 20 to meet my friend?

ASSISTANT: Sure, I will help you. May I know your airport code clearly in Houston?

USER: Sure, the airport code is TX- HOU.

ASSISTANT: Thank you, can I know your source airport code please?

USER: My source airport code is JFK.

ASSISTANT: Scott Edwards, do you have any plans on your return journey?

USER: Yes, I need to return back on 22nd March evening.

ASSISTANT: Please wait a moment, I will find the availability of flights.

USER: Sure.

ASSISTANT: Thank you for your waiting, I found an economy class ticket in Delta airlines with price 100 and it is a connecting flight. Can I book your ticket?

USER: Sure, its perfectly match my requirements, please proceed.

ASSISTANT: Ok, your booking is confirmed with flight number 1020.

USER: Ok, Thank you for booking a flight ticket for me.

ASSISTANT: Thank you for reaching us, have a safe journey.