You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephen King.

ASSISTANT: How can I help you?

USER: Could you please book a flight ticket to MCO from LAS?

ASSISTANT: Let me know your travel dates.

USER: I want to travel on Nov 27 and return on Nov 29.

ASSISTANT: Do you have any preference?

USER: I prefer a normal cost airline. I want to return in the evening.

ASSISTANT: Connecting flight can be booked with airline Delta for price 100 having flight number 1012. Shall I book a ticket?

USER: Ok, proceed with the booking.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.