You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: As I am a doctor, I want to attend an emergency case at Detroit, DTW. Can you please book a ticket from SFO?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My scheduled dates are Feb 28 and Mar 1.

ASSISTANT: Do you have any specifications?

USER: Yes, I prefer economy class.

ASSISTANT: May I know the connection limit?

USER: I want a direct flight.

ASSISTANT: Please provide me the name to reserve the ticket.

USER: Sure, I am Margaret Collins.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 200. Shall I proceed in booking?

USER: No, I want a direct flight. Thank you.

ASSISTANT: Sorry, it is a direct flight. In an economy class, your ticket has been confirmed for the flight 1013 in United Airlines.

USER: Ok, Thank you.

ASSISTANT: Thank you for reaching us.