You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I am planning to travel from LAS to DCA, can you please help me in flight booking?

ASSISTANT: Sure, I am gleeful to assist you. Can you please let me know your travelling dates?

USER: I want to fly on Sept 22, return on Sept 24.

ASSISTANT: Are you okay with connecting flight or you need a direct flight?

USER: I need a connecting flight.

ASSISTANT: Can I have your name please?

USER: My name is Karen Evans.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by Spirit airline with the flight number-1021 and the fare 100, shall I book the connecting flight?

USER: Ok, proceed to booking.

ASSISTANT: Your flight booking is confirmed and ticket has been emailed.

USER: Thank you.

ASSISTANT: It's pleasure to serve you.