You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I provide assistance for you?

USER: Please book a ticket with the name of Kenneth Thompson from Denver, DEN on 01/16.

ASSISTANT: Sure,  help me with your return date.

USER: Return date is 01/18.

ASSISTANT: Please, share your fare limit.

USER: 1000 is my price limit.

ASSISTANT: May I know your destination airport code?

USER: New York, LGA is the destination point.

ASSISTANT: Thank you for providing your journey details. Please, hold on.

USER: Sure.

ASSISTANT: Thank you for your valuable time. We are sorry to inform you that, no flights were found on your journey routes.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us, have a good day.