You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you for the day?

USER: Can you please book a flight ticket with the name of Kathleen Roberts to attend  workshop in Boston, BOS?

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

USER: My  journey dates are, depart on 09/14 and arrival on 09/16.

ASSISTANT: From where do you want to board to reach Boston?

USER: I want to board form Los Angeles, LAX.

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

USER: Yes, I need a stopover in between journey.

ASSISTANT: Ok, please wait a moment let me search a flight for you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your preferred dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.