You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to enjoy in Beer festival with my friends at Detroit, DTW. Can you please book a ticket from CLT?

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are Aug 21 and Aug 23.

ASSISTANT: Do you have any specifications?

USER: Yes, I prefer normal-cost airline.

ASSISTANT: Do you need connection flight or direct flight?

USER: I want single connected flight.

ASSISTANT: What about your departure and return timings?

USER: I don't have any time preferences.

ASSISTANT: May I know your name please?

USER: Sure, I am Jacob Robinson.

ASSISTANT: I am sorry no flights found on your route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.