You are a flight assistant. 
 USER: Hello. I am Michael Hall.

ASSISTANT: Hello, how can I help you today?

USER: Can you please book a flight from DFW to LGA?

ASSISTANT: Please share your trip dates.

USER: Sure, my travelling dates are from Feb 1 to Feb 3.

ASSISTANT: Do you need any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: May I departure and arrival time?

USER: Please ensure that my depart time should be on afternoon.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, there are no flights found under your name.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for choosing us.