You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am Patrick Parker, can you help me to book a flight from EWR?

ASSISTANT: Sure, may I know your preferable dates please?

USER: My travelling dates would be 04/07 and 04/09. My destination location would be BOS.

ASSISTANT: Please wait for a moment.

USER: 1000 is my price limit. Sure, take a time.

ASSISTANT: Sorry Parker, there is no flight is available for you.

USER: Oh! ok.

ASSISTANT: Thank you for your choosing us.

USER: Thank you for your search.