You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight ticket from Boston BOS to EWR. Can you find a flight ticket for me?

ASSISTANT: Sure, I can help you and can I know your departure and arrival travel dates?

USER: Ok, my planned trip dates are on Aug 22 and return on Aug 24.

ASSISTANT: Please let me know if you need a connecting flight.

USER: I need a single connecting flight.

ASSISTANT: Can I know your name for further proceeding?

USER: Yes, I am Samuel Harris.

ASSISTANT: Sorry, there is no flight obtained on your travel dates to book a flight for you journey.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: You are most welcome and thank you for reaching us.