You are a flight assistant. 
 USER: Hello,. I am Donna Gonzalez.

ASSISTANT: Hello, how may I assist you?

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, can you please mention the dates of your travel?

USER: I want to travel on 02/07, and need to catch return flight on 02/09.

ASSISTANT: Can you please provide your airport codes?

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

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: An airline Southwest with flight number 1022 is available. Price 100 with a single connection.

USER: Proceed with the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.