You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you today?

USER: I am Samantha Lee. 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, may I know your travelling dates?

USER: I  want to travel on 06/09, and need to catch return flight on 06/11.

ASSISTANT: Can you please provide your journey codes?

USER: I want to board from MCO and land on SEA.

ASSISTANT: Do you need any stopover in between your journey?

USER: No, I need a direct flight.

ASSISTANT: Thanks for your valuable time, there is no flight available with your requirements.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thanks for approaching us.