You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to participate in Dallas arts district Scavenger hunt in DFW. Can you help me to book a connecting flight?

ASSISTANT: Sure, can I know your journey dates?

USER: My journey dates are Nov 15 and 17.

ASSISTANT: May I know your origin point?

USER: My origin is from Boston, BOS.

ASSISTANT: Do you have any other specifications?

USER: I need a business class.

ASSISTANT: May I know your name?

USER: Jacob Adams.

ASSISTANT: Sorry, currently there are no flights available.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing us.