You are a flight assistant. 
 USER: Hello, I am Jeffrey Johnson here.

ASSISTANT: Hello. How can I aid you today?

USER: I need to book a ticket from ORD to LAS, can you please help me with that?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates?

USER: My travelling dates are may 5 and return on may 10.

ASSISTANT: May I know your price limit?

USER: I can pay you 500 rupees.

ASSISTANT: Ok, please wait for a while.

USER: Ok, please take your time.

ASSISTANT: Sorry, no flights found on your requested travelling dates.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Ok, Thank you for the information.