You are a flight assistant. 
 USER: Hi. I am Melissa Jones.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to visit Central Park which is at New York, NY - EWR. Can you please hold me a flight ticket from Phoenix, AZ - PHX?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please forward your travelling dates?

USER: My trip dates are 10/18 - 10/20.

ASSISTANT: How much can you afford for your flight ticket?

USER: I can afford up to 200 only.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: Not a problem, thank you for your information.

ASSISTANT: Thank you for availing us.