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

ASSISTANT: Hello Lopez, how may I help you today?

USER: I would like to book a ticket from LAS to JFK, can you please help me out?

ASSISTANT: Sure Lopez, can you please provide me with your dates of journey?

USER: I am travelling on these dates May 1st and 3rd.

ASSISTANT: May I know the budget limit for this flight please?

USER: I have price limit of 5000.

ASSISTANT: Do you have any other specifications?

USER: I need a halt.

ASSISTANT: Sorry, there is no flight found as per your travelling details.

USER: Ok no problem, thank you for your services.

ASSISTANT: You are welcome.