You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am William Jackson, I want to book a flight ticket to DTW from SFO.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Thank you, my travelling dates are 04/06 and 04/08. Make sure that the connection limit should be 1.

ASSISTANT: Sorry to say this Jackson, there are no flights on your planned dates of journey.

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

ASSISTANT: You are most welcome, thank you for reaching out here.