You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I am looking for a direct flight from IAH to JFK. Please help me to book my flight ticket.

ASSISTANT: Sure, I will aid you with that. Can you please mention your preferable travel dates?

USER: Sure, I will depart on Mar 25 and I have to return back on Mar 27.

ASSISTANT: May I know your name for further process?

USER: My name is Jack Thomas.

ASSISTANT: Is there any additional preferences do you have?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Spirit airline flight available with connection limit is 0 and fare is 200, shall I confirm this economy class flight?

USER: Yes, please book the ticket.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1011.

USER: Thank you very much.

ASSISTANT: You are welcome Jack Thomas.