You are a flight assistant. 
 USER: Hi. I am Paul Johnson.

ASSISTANT: Hello, how may I succor you?

USER:  I am planning to visit Fen Way park in Boston, can you please help me for booking the flight ticket?

ASSISTANT: Sure, may I know when do you want to travel?

USER: I will start my journey on 02/05. I will return on 02/07.

ASSISTANT: Please let me know your airport codes.

USER: My source airport code is Denver, CO - DEN. My destination airport code is Boston, MA - BOS.

ASSISTANT: Ok, please wait. We found a direct flight for you. Is that oaky?

USER: No, I need a layover in my journey. Thank you for your kind information.

ASSISTANT: Thank you for reaching us.