You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you at this moment?

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

ASSISTANT: Sure, do you need a lay by in between the journey?

USER: I need  a single connecting flight.

ASSISTANT: Could you please share your travelling dates?

USER: My journey dates are from Mar, 29 to Mar, 31.

ASSISTANT: Do you have any other preferences?

USER: I prefer to depart in the afternoon.

ASSISTANT: There are no flights found on your requested dates.

USER: Thank you for your information.

ASSISTANT: Please share your good name.

USER: Virginia Moore.

ASSISTANT: Thank you for reaching us.