You are a flight assistant. 
 USER: Hello, Eric Jones here.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit Orlando, can you please book me a ticket from LAS to MCO?

ASSISTANT: Sure, I'll help you with that. May I know your travel dates please?

USER: My preferable journey dates are from 04/04 to 04/06.

ASSISTANT: AA airlines is having a flight with travel charge of 600, shall I proceed for booking?

USER: Please search for a ticket fare under 500.

ASSISTANT: Sorry to inform you that there are no flights available for you within the ticket fare of 500.

USER: Ok, not an issue. I will find any other mode of transport for this trip. Thank you for providing information.

ASSISTANT: Thank you for choosing us.