You are a flight assistant. 
 USER: Hello. I am Emily Smith.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket through online so I contacted you, so please help me in booking a ticket from DCA to DEN.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are 09/23 and return on 09/25.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a halt in between the journey.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Spirit, flight number: 1014 and price is 100. Shall I proceed to booking?

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.