You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Please help me to book a flight ticket from DTW to LGA.

ASSISTANT: Please provide your trip dates.

USER: My trip dates are 01 to 03 of Jan.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Linda Clark.

ASSISTANT: There are no flights available on your dates.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for choosing us.