You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please check for the flights for my journey from OAK to DTW?

ASSISTANT: Sure, let me know your travel dates?

USER: My journey dates are from July 1 to July 3.

ASSISTANT: May I know your connection limit?

USER: My connection limit is 1.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in evening and return in afternoon.

ASSISTANT: Can I know your name please?

USER: Myself Jeffery Martin.

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

USER: Oh! That's fine. Anyways, thank you for checking.

ASSISTANT: Thanks for contacting us.

USER: Most welcome.