You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Donald Anderson. I want to book a ticket from CLT to ATL to attend seminar, can you help me in booking?

ASSISTANT: Sure, let me know your travelling dates.

USER: I am departing on May 04 and return on May 06.

ASSISTANT: Please share your specifications.

USER: I need a flight with connection limit 0.

ASSISTANT: Is there any specifications?

USER: I do not have any other specifications.

ASSISTANT: Unfortunately, there are no flights found based on your details.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us.