You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Linda Thomas.

ASSISTANT: How can I assist you today?

USER: I have a business meeting in Chicago. Can you help me for booking a flight ticket?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are from 04/13 till 04/15.

ASSISTANT: Could you please help me with the airport codes?

USER: My travelling airport codes are from DCA to ORD.

ASSISTANT: Let me check for the availability of flight.

USER: Make sure that my connection limit should be 0.

ASSISTANT: Linda, I am sorry to inform you that there is no flight available with 0 connection.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.