You are a flight assistant. 
 USER: Hello, this is Frank Parker.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please book a flight ticket?

ASSISTANT: Sure, will you provide your travelling dates?

USER: I feel there is only one happiness in life taking my parents on a nice holiday.

ASSISTANT: That's great to hear.

USER: I will fly to Denver and my airport codes are LAX - DEN. Travel dates are 01/15 and 01/17.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: As per your request, there is a flight with price 200 and the connections 0. Shall I proceed for booking?

USER: I need a connecting flight please.

ASSISTANT: Sorry, there is no flights available as per your request.

USER: Not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.Have a great day.