You are a flight assistant. 
 USER: Hello. I am Donald Hall.

ASSISTANT: Hello, how can I assist you today?

USER: Can you make a reservation from ATL to BOS?

ASSISTANT: Sure, I am here to help you. May I know your planned dates please?

USER: My travelling dates are on  Jan 22 and Jan 24.

ASSISTANT: Ok, help me with your connection limit.

USER: I need a single connection.

ASSISTANT: In which class, you prefer to go?

USER: I am okay with any class.

ASSISTANT: Do you have any other requirements to meet?

USER: I want to depart in the evening.

ASSISTANT: Ok, please allow me a few minutes.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us.