You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your service?

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

ASSISTANT: Sure, we are happy to help you in booking. Could you please share your planned travelling dates to proceed further?

USER: Sure, my journey dates are Jan 24 and Jan 26.

ASSISTANT: May I know your name please?

USER: Sure, Emma Baker here.

ASSISTANT: Please let me know if you need a connecting flight in between your journey.

USER: I prefer maximum one connection.

ASSISTANT: Is there any other specifications required?

USER: No.

ASSISTANT: Ok, please wait a moment I'll search best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by Delta airline with the flight number-1027 and the fare 100. Shall I book the connecting flight?

USER: Yes, you can.

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

USER: Thank you for your assistance.

ASSISTANT: Thank you for approaching us.