You are a flight assistant. 
 USER: Hi, I am Kevin Harris.

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

USER: Can you please help me in reserving a ticket from BOS to ORD?

ASSISTANT: Sure, I am here to help you with that. Can you please share your planned travel dates?

USER: My travel dates are from Aug 15th to Aug 17th.

ASSISTANT: Do you have any airline preference?

USER: No, I don't have airline preference.

ASSISTANT: May I know your connection limit?

USER: I want a single connection in between my journey.

ASSISTANT: Do you have any other specifications?

USER: Yes, I want to depart in the evening time.

ASSISTANT: There are no flights available on this route as per your details.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us, have a great day.