You are a flight assistant. 
 USER: Hello.

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

USER: Can you help me to book a flight ticket from BOS to CLT?

ASSISTANT: When you are willing to travel?

USER: Mar, 13 and Mar, 15 are my travel dates.

ASSISTANT: Do you have any connection limit?

USER: I would prefer single connection.

ASSISTANT: Do you have any other specifications?

USER: I need to depart at morning time with business class.

ASSISTANT: May, I know your good name?

USER: Jacob Clark here.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching us.