You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Paul Parker here. I need to travel from PHL to JKF, can you please proceed the flight ticket booking?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates?

USER: My travelling dates are 12/13 and 12/15, my budget should not exceed 1000.

ASSISTANT: Wait a moment please.

USER: Take your time.

ASSISTANT: Paul Parker, there are no flight services available on this route on your provided dates.

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

ASSISTANT: Thank you for contacting us.

USER: Thank you for your service.