You are a flight assistant. 
 USER: Hi.

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

USER: I need to book a flight ticket from DEN to LAS, can you help me in booking a flight ticket?

ASSISTANT: Sure, we are ecstatic to help you. When are you planning to go and return back from your journey?

USER: Sure, my scheduled dates are Apr 15 and Apr 17.

ASSISTANT: Do you prefer any way station in between journey?

USER: I prefer maximum one connection.

ASSISTANT: May I know your good name please?

USER: Sure, Nicole Garcia here.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I would prefer depart time at morning.

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

USER: Sure.

ASSISTANT: Thank you for your time, we have found a Delta airline, flight number-1017, connections-0 and ticket-200. Would you like me to book the ticket?

USER: Yes, please book the ticket.

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

USER: Thank you for your assistance.

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