You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Could you please book a ticket with a direct flight from San Francisco?

ASSISTANT: Let me know your travel dates.

USER: I want to travel on 1st Mar and return back on 3rd Mar.

ASSISTANT: Can I know your airport codes/.

USER: My boarding point is SFO and landing point is DTW.

ASSISTANT: Do you have any preference?

USER: I don't have any other preferences.

ASSISTANT: Can I know your name?

USER: My name is Gregory Scott.

ASSISTANT: Found ticket with airline JetBlue for price 100 having flight number 1019.

USER: If it is a direct flight, please proceed.

ASSISTANT: Ticket is booked.

USER: Thank you for the help.

ASSISTANT: Thank you.