You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Stephanie Allen. I am planning to attend music concert at ATL, can you please help me with booking a flight ticket from LAS?

ASSISTANT: Sure, can you share your journey dates?

USER: Sure, I would like to take off on Mar 9 and return on Mar 11.

ASSISTANT: Do you have any preferences?

USER: I prefer economy class.

ASSISTANT: There is a connecting flight with number 1003 in airline AA, the fare is 100 in economy class. Can I book it?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.