You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can help you at this moment?

USER: I am planning to book a ticket from IAH to DCA. Can you please help me out?

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

USER: I am planning to travel on Apr 22 and return back on Apr 24.

ASSISTANT: May I know your name for further process?

USER: My name is Gregory Turner.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: I am ok with any timings.

ASSISTANT: Do you have any another specifications?

USER: I am looking for a economy class.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Spirit airline flight available with connection limit 1 and fare is 100, shall I confirm this economy class flight?

USER: That's fine, please proceed the booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1021.

USER: Thank you for your service.

ASSISTANT: You are welcome Gregory Turner.