You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you for the day?

USER: I have planned to book a flight from CLT to reach Boston, will you please help me in booking a flight?

ASSISTANT: Sure, I am here to help you. Can you please share your travelling dates?

USER: Thank you. My travelling dates are on Dec 16th to 18th.

ASSISTANT: Can you mention your name please?

USER: Sure, my name is Barbara Adams.

ASSISTANT: Do you prefer class?

USER: Yes, I need a flight in business class.

ASSISTANT: Do you need connection limit?

USER: Yes, I need a single connection.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Sorry, no flight found in that route.

USER: No worries, thank you.

ASSISTANT: Thank you for choosing us.