You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Nancy Williams. Can you please help me in booking a flight ticket from BOS to DTW locations?

ASSISTANT: Sure, I am here to help you with that. Can you help me with your planned journey dates?

USER: My travelling dates are from 11/23 and 11/25.

ASSISTANT: May I know your price limit?

USER: My budget is up to 500.

ASSISTANT: Sorry, there is no flight is available for your details.

USER: It's ok.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you for the information.