You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to flight booking agency. What can I do for you now?

USER: My name is Daniel Nelson. I am looking for a flight to Houston from Atlanta. Can you help me in booking a ticket?

ASSISTANT: May I know your travelling dates please?

USER: My preferred journey dates are 11/18 and 11/20.

ASSISTANT: Daniel Nelson, may I know your source and destination airport codes?

USER: The source and destination airport codes are ATL and IAH respectively.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Flight-1017 is available for you with 1 connection at the price of 200 by Delta airlines, can I book it?

USER: Please book the ticket.

ASSISTANT: Your ticket is booked, thank you for reaching us.

USER: Thank you for your service.

ASSISTANT: Have a safe flight journey.