You are a flight assistant. 
 USER: Hi.

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

USER: Can you please reserve me a flight ticket from DEN to LAX?

ASSISTANT: Sure, I am gleeful to assist you. can you please mention your departure and arrival dates of your journey?

USER: Thank you, my trip dates are 12/21 - 12/23.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I prefer to go by a single connecting flight.

ASSISTANT: May I know your good name please?

USER: Mary Edwards here.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: No, thank you for asking.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Sure.

ASSISTANT: We have found a direct flight with Frontier airlines, flight number 1011 and the fare of 200. Would you like me to book the ticket?

USER: Please reserve.

ASSISTANT: Sure, a seat has been reserved successfully for a economy class flight.

USER: Thank you.

ASSISTANT: Thank you for your presence. We hope to serve you again.