You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Anthony Perez here, can you please help me in booking the ticket from JFK to DEN? As I'm planning to visit Denver botanical gardens. Sure, my planned travel dates are 04/14 and 04/16.

ASSISTANT: Ok, please give me a minute. I will check for flights availability and let you know.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting, we found a flight with your provided information in Hawaiian airline with 1 connection and the fare is 600. Shall I confirm your ticket with this airline?

USER: Can you please search for the flights within the ticket fare of 200?

ASSISTANT: Yes, sure. Please wait a minute. Sorry, within your budget limit, there is no flights available.

USER: That's ok, thank you for giving the information.

ASSISTANT: Most welcome.