You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me to book a connecting flight?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are Oct 10 and 12.

ASSISTANT: Could you please provide the airport codes?

USER: My airport codes are LAS and DTW.

ASSISTANT: May I know your name please?

USER: Sure, my name is Anna Allen.

ASSISTANT: Do you have any requirements?

USER: No.

ASSISTANT: There is a connecting flight in Delta airline, can I book it?

USER: Proceed with booking.

ASSISTANT: Your ticket has been booked with flight number 1020.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.