You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Helen Carter here.

ASSISTANT: How can I help you?

USER: I want to book a ticket from CLT to DTW.

ASSISTANT: Please provide me your travelling dates?

USER: My travelling dates are from 09/30 to 10/02. I had a urgent meeting, so make sure that there is 0 connection limit.

ASSISTANT: Sorry, the flight is available with 1 connection.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you and have a nice day.