You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Katherine Taylor here.

ASSISTANT: How can I assist you?

USER: I need to book a ticket from EWR to LAS can you please help me out?

ASSISTANT: Ok, can I know the travel dates to book a flight ticket?

USER: My travelling dates are 04/06 and 04/08 and my budget should not exceed 200.

ASSISTANT: There is no flight available at your location, sorry for the inconveniences.

USER: That's not an issue, I will choose any other source to travel that place.

ASSISTANT: Thank you for connecting with our agency.