You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I want to book a flight from DEN to meet my family members at Boston city. Can you book a flight to BOS?

ASSISTANT: Sure, we are glad to help you. Can I have your trip dates please?

USER: I will travel on Jan 11 and return on Jan 13.

ASSISTANT: Do you have any class preference?

USER: I want to travel in economy class.

ASSISTANT: Please help me with your connection limit.

USER: Please book me a connecting flight.

ASSISTANT: Is there any other specifications to be met?

USER: Yes, I need my return flight in morning.

ASSISTANT: May I know your good name?

USER: My name is Richard Wright.

ASSISTANT: Thanks for providing details, there is no flights are available on your requirements.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.