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

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight ticket on 12/19 and return on 12/21, can you help me with it?

ASSISTANT: Sure, may I know your journey points?

USER: Yes, my airport codes are NY-EWR and WA-SEA.

ASSISTANT: Ok, please share your price limit.

USER: Sure, I can pay up to 200.

ASSISTANT: Ok, please standby.

USER: Ok.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

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

ASSISTANT: Thank you for choosing us.