You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: Could you help me by booking a flight from LAS on Jan 18?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please share your destination airport code with us?

USER: My preferred destination airport code is DEN.

ASSISTANT: May I know your arrival date?

USER: I am planning to return on Jan 20.

ASSISTANT: Do you have any connection limit?

USER: Yes, search for a connecting flight.

ASSISTANT: Is there any airline preference?

USER: I am comfortable to fly in normal cost airline.

ASSISTANT: May I know your arrival and depart timings?

USER: I am fine with any time.

ASSISTANT: May I know your good name to proceed further?

USER: My name is Paul Scott.

ASSISTANT: Please be on hold.

USER: Sure, make it fast.

ASSISTANT: We found a connecting flight of fare 100 with airline United and number is 1009. Can I proceed?

USER: Proceed with booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.