You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Please help me out in booking the ticket from DTW to OAK.

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

USER: My trip dates will be Dec 27 to Dec 29.

ASSISTANT: Can I know your name please?

USER: Matthew Wright.

ASSISTANT: Do you need any specifications?

USER: I need a connecting flight.

ASSISTANT: Can I know your other preferences?

USER: No.

ASSISTANT: Sorry, there are no flights found in our database.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.