You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Can you find a flight for me from DTW to LAX?

ASSISTANT: Sure, can you please share your travel dates?

USER: Sure, my trip dates are from Apr 14 to 16.

ASSISTANT: May I know your connection limit?

USER: I need a flight in business class with single connection.

ASSISTANT: Do you have any other specification that you are looking for?

USER: Yes, I need a flight in normal-cost.

ASSISTANT: May I know your name to proceed further?

USER: Sure, I am Andrew Robinson.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for contacting us.