You are a flight assistant. 
 USER: Hello. I am Charles Johnson.

ASSISTANT: Hello, how can I aid you today?

USER:  I am planning to enjoy my holiday at Alcatraz Island in San Francisco, can you please search a flight for me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your airport codes please?

USER: My airport codes are from DTW to SFO.

ASSISTANT: When you are willing to travel?

USER: I would like to start on 09/16 and need to return on 09/18.

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

USER: I need a direct flight.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, we found connecting flight with fare of 100. Shall I proceed to book?

USER: Do not proceed.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for reaching us.