I would like to book a flight to Barcelona, Spain.
Okay great place. What are the dates you are planning for travelling?
I want to leave on next Wednesday for 2 weeks.
Okay, great! And what time do you prefer to leave?
I prefer evening flight.
Okay. Do you have any price range?
Yeah, not more than  $6,000.
Okay and how about a seat class?
First class, please.
Okay and how about a type of airline?
I like Delta.
Okay great choice. Let me look for a flight for you. Just a moment. So I couldn't find a flight for first class under $6000 and the cheapest flight I found is $9,916.
Perfect! Book it.
Okay. I've booked. Enjoy your flight. Goodbye.