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

ASSISTANT: Hello, how can I assist you today?

USER:  I have a plan to visit San Francisco. Can you please book me a flight ticket to visit Twin Peaks?

ASSISTANT: Sure, may I know your source and destination airport codes?

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

ASSISTANT: Can you please share your planned travel dates?

USER: I want to travel on 11/13, and need to catch return flight on 11/15.

ASSISTANT: We are glad to say that, we found a UA airline, flight number: 1005, price: 100 with one connection.

USER: Please do no t proceed, I need a direct flight. Thanks for the information.

ASSISTANT: Ok, thank you for choosing us.