You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Joseph Taylor, please book me a plane ticket from 08/23 to 08/25.

ASSISTANT: Sure, please provide your airport codes.

USER: Sure, my airport codes are from EWR to SEA.

ASSISTANT: Please wait a moment.

USER: Make sure I need my plane ticket fare should be within 1000.

ASSISTANT: Taylor, no flights has been found on your request.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.