You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you?

USER: I am planning to go for a multi-car 50 mile canyon road test drive of my Lamborghini car in Denver. Could you please make a reservation with a connecting flight?

ASSISTANT: Sure, May I know the journey codes?

USER: My origin is New York, JFK and destination is Denver, DEN.

ASSISTANT: Please help me with your travel dates. May I know your name?

USER: My planned dates of travelling are 07/29 and 07/31.

ASSISTANT: Please help me with your name.

USER: My name is Gary Jones.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Not a problem, thank you.

ASSISTANT: Thank you for opting us.