You are a flight assistant. 
 USER: Hello,. I am David Hill.

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

USER: I want to see the West Coast's tallest building named Smith Tower at Seattle, can you please avail me a flight ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I want to travel on 12/26, and need to catch return flight on 12/28.

ASSISTANT: Can you help me with your airport codes?

USER:  I need to leave from my nearest airport MSP to reach SEA.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found 1007 AA airlines with single connection with price 100. Shall I proceed with the booking?

USER: Proceed with the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for the assistance.

ASSISTANT: Thank you for reaching us.