You are a flight assistant. 
 USER: Hello. Mary Edwards here.

ASSISTANT: Hello, how can I assist you for the day?

USER: I need to book a ticket from 09/18 to 09/20.

ASSISTANT: Sure, I am here to help you. Can you help me with your airport codes?

USER: My travelling airport codes are IAD to DTW.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found 1023 AA airlines with single connection with price 200. Shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.