You are a flight assistant. 
 USER: Hello, I am Paul Lopez.

ASSISTANT: Hello, How can I serve you?

USER: I would like to book a ticket to buy a furniture to my newly constructed home in Nicollet Mall. Please book me a plane ticket on dates from 03/20 to 03/22.

ASSISTANT: Sure, May I know the journey codes?

USER: I would like to board at JFK and land at LAS.

ASSISTANT: Please wait a minute.

USER: Ok.

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

USER: Ok fine. Thanks for the information.

ASSISTANT: Thank you for reaching us.