You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I serve you?

USER: I am Michelle Clark. 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 03/19, and need to catch return flight on 03/21.

ASSISTANT: Could you please share me your airport codes?

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

ASSISTANT: Do you have any other requirements?

USER: Yes, I need a connecting flight.

ASSISTANT: Please wait for a minute. Thanks for being patience, there were no flights found with your given details.

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

ASSISTANT: Thanks for reaching us.