You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. In which way I can aid you today?

USER: I need a direct flight ticket to Houston, Hou. Can you please help me in booking?

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

USER: My trip dates are 08/13 - 08/15.

ASSISTANT: May I know your preferable airport code names for further process?

USER: My source code is Seattle, SEA.

ASSISTANT: Can I know your destination airport code name?

USER: Already mentioned above.

ASSISTANT: Do you have any another specifications?

USER: No, thank you for asking.

ASSISTANT: May I know your name?

USER: Patrick Turner here.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Spirit airline flight available with connection limit is 0 and fare is 100, shall I confirm this economy class flight?

USER: Please proceed to book.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1019.

USER: Thank you for your help.

ASSISTANT: You are welcome.