You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to travel to Detroit, MI - DTW for a vacation. Can you please help me in booking my flight ticket?

ASSISTANT: Sure, may I know your source details?

USER: My source is Washington DC - IAD.

ASSISTANT: OK, may I know your travelling dates?

USER: My travelling dates are 10/19 and 10/21.

ASSISTANT: Yes, could you provide me your name?

USER: I'm Brenda Gonzalez.

ASSISTANT: OK, Brenda I found a flight-1000 with AA airlines can I proceed?

USER: Yes, proceed. Can you provide me connection limit?

ASSISTANT: Yes, the connection limit is 1 and the price is 200.

USER: Is there any other flight with 0 connection limit?

ASSISTANT: Sorry, no flights found for 0 connection.

USER: Don't book it for me.I want a flight with 0 connection limit. Thank you for your information.

ASSISTANT: Sorry, Brenda thank you.