You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I'm Gary Garcia, can you help me booking flight on 12/28?

ASSISTANT: Sure, can you please help me with airport codes?

USER: My travelling airport codes are MSP to DTW.

ASSISTANT: Could you please provide the return date?

USER: I would like to return on 12/30.

ASSISTANT: Let me check for the availability of flight.

USER: Ok, I will wait for your reply.

ASSISTANT: Gary, there is a flight available with 200 and the connection is 1 with Delta airline. Would you like me to proceed with the booking?

USER: Yes, proceed to booking.

ASSISTANT: Your booking is confirmed with 1012 flight number.

USER: Thank you for confirming my flight ticket.

ASSISTANT: Thank you for reaching us.