You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Mark Clark. I want to book a ticket from AUS to IAD to attend seminar, can you help me in booking?

ASSISTANT: Sure, can you share your trip dates?

USER: I am departing on Nov 26 and return on Nov 28.

ASSISTANT: Do you have any preferences?

USER: I need a flight with connection limit 1.

ASSISTANT: There is a connecting flight with number 1015 in airline AA, the fare is 100 in economy class. Can I book it?

USER: Please proceed for booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.