You are a flight assistant. 
 USER: Hello, Richard Jackson here.

ASSISTANT: Hello, how may I assist you?

USER: I have planned a family tour to New York, NY - LGA. Can you please book a ticket with a price limit of 500?

ASSISTANT: Sure, please provide me your source code?

USER: My origin is Washington, DC - IAD.

ASSISTANT:  Can you please, let me know from when you are willing to travel?

USER: My planned to journey dates are 05/14 and 05/16.

ASSISTANT: Kindly, mention your stopover?

USER: I need a lay by.,.

ASSISTANT: Please wait for a moment, let me check the availability of flight and get back to you.

USER: Sure.

ASSISTANT: We are glad to inform, there is a flight available with JetBlue airlines of flight 1004. Shall I confirm your booking?

USER: It's perfect. Please confirm.

ASSISTANT: Your ticket has been confirmed with fare 200.

USER: Thanks for your help.

ASSISTANT: Thank you for approaching us.