You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Carol White. I want to book a flight ticket from ORD to CLT. Could you help me in booking?

ASSISTANT: Sure, may I know your dates for travelling?

USER: My travelling dates are from June 05-07.

ASSISTANT: Do you need any connection limit?

USER: I need direct flight.

ASSISTANT: Do you need any other specifications?

USER: My return time should be in the evening.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: That's ok. no problem. Thank you.

ASSISTANT: Thank you for reaching us.