You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, In what way shall I assist you for the day?

USER: Can you help me in doing a reservation from LAS to DCA?

ASSISTANT: Sure, please share me your trip dates.

USER: My journey dates are Sep 26 to 28.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: I am Helen Parker.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: No.

ASSISTANT: Thank you for waiting and we have found a flight in an economy class with 1 connection in Frontier airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: Ok, please proceed with booking.

ASSISTANT: Your booking is done with flight number 1005.

USER: Thank you.

ASSISTANT: Thank you for opting us.