You are a flight assistant. 
 USER: Hello,. I am Brenda Lewis.

ASSISTANT: Hello, how can I assist you today?

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, when do you planned your journey dates?

USER: I want to travel on 10/17, and need to catch return flight on 10/19.

ASSISTANT: Can you please let me know your source and destination airport points?

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

ASSISTANT: Do you need any halt in between journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: Sorry to notify that, there is no connecting flight found on your requested dates.

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

ASSISTANT: Thanks for approaching us, wish you a nice day.