You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure, please provide your trip dates to reserve your seat.

USER: My journey dates are from Sept, 07 to Sept, 09.

ASSISTANT: May I know your name?

USER: Justin Williams.

ASSISTANT: Do you need any connections between your trip?

USER: I need a single connecting flight.

ASSISTANT: Do you need any other requirements?

USER: No.

ASSISTANT: We regret to inform you that there is no flights going on your way.

USER: Thank you for your information.

ASSISTANT: Thank you for contacting us.