You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I need a flight ticket booking from BOS to EWR locations, can you please help with that booking?

ASSISTANT: Sure, May I know the journey dates?

USER: Thank you and I want to take off on Dec 17 and I will arrive back on Dec 19.

ASSISTANT: Do you have any connection limit?

USER: I need a single drop off.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Dorothy Adams.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No an issues with that one, I can prefer any other source. Thank you for your help.

ASSISTANT: Thank you for availing us.

USER: Welcome.