You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking a flight ticket from MSP to OAK?

ASSISTANT: Sure, let me know your travel dates please?

USER: My travel dates are from Sept 18th to Sept 20th.

ASSISTANT: Ok, is there any class preference?

USER: Yes, I want a business class.

ASSISTANT: May I know your connection limit?

USER: I want a single connection.

ASSISTANT: Do you have any other specifications?

USER: I want to return in the evening.

ASSISTANT: Can I know your name please?

USER: I am Jonathan Hernandez.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for reaching us.