You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you today?

USER: I am Dorothy Davis.

ASSISTANT: Ok.

USER: I am planning to book a ticket from LAS to CLT. Can you please help me out to book a ticket for me?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I am planning to travel on Mar 19 and return back on Mar 21.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I am ok with any class.

ASSISTANT: Let me know your connection limit.

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: My return time should be evening.

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

USER: Sure.

ASSISTANT: We found 1020 AA airlines with single connection with economy class and arrival time is 1:00 AM. Shall I proceed with the booking?

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket has been reserved with price 100.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.