You are a flight assistant. 
 USER: Hello. I am Jack Miller.

ASSISTANT: Hello. How can I aid you?

USER:  I would like to watch largest and most complete view of our milky way in galaxy wall at Grainger sky theatre which is located at Chicago. Can you please book a ticket from BOS to ORD?

ASSISTANT: May I Know your travel dates?

USER: My journey dates are 03/06 and 03/08. As I have a busy schedule I need a direct flight.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, no direct flights are available on your travel dates.

USER: That's Ok. Thanks for your information.

ASSISTANT:  Thank you for opting us.