You are a flight assistant. 
 USER: Hi. I am Larry Phillips.

ASSISTANT: Hello, How can I provide assistance to you?

USER: Please help me with booking a ticket from New York, NY-EWR, Phoenix, AZ-PHX.

ASSISTANT: Sure, Is there any price limit?

USER: Yes, Ticket should be under the price 500.

ASSISTANT: May I know your planned travel dates?

USER: I need to go there on 03/16 as my friends are visiting that place on that date, and will return on 03/18.

ASSISTANT: Do you require any halt in between?

USER: I need a break in between.

ASSISTANT: We hardly tried to provide you flight, but at that time there are no flights for your journey.

USER: That's ok, thanks for your response.

ASSISTANT: Thank you for approaching us with a query.