You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you right now?

USER: I am Deborah Evans. I need to visit Boston to meet my friend, can you please help me to book a flight ticket from CLT to BOS?

ASSISTANT: Sure, I can help you and may I know on what dates that you are willing to travel to your location?

USER: Sure, my journey dates are Jan 10 and Jan 12.

ASSISTANT: Do you need any connection in between your journey?

USER: I want a flight with maximum connection of 1.

ASSISTANT: Is there any other preferences?

USER: My departing time is evening and class preference is economy.

ASSISTANT: Please wait for a while to search for the flight and I will get back to you.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say, no flight is moving in that particular time to book a ticket for your journey.

USER: No problem, thank you for your information.

ASSISTANT: You are most welcome and have a nice day.