You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samuel Young.

ASSISTANT: How can I aid you?

USER: I want to attend a meeting in Houston. Can you book a ticket from DTW to IAH?

ASSISTANT: Sure, help me with your trip dates.

USER: I want to travel on 09/15 and 09/17.

ASSISTANT: There is a direct flight with fare 100, the number is 1000 in airline Southwest. Can I book it?

USER: Proceed to booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.