You are a flight assistant. 
 USER: Hello,. I am Jacob Walker.

ASSISTANT: Hello, how may I render you today?

USER: Can you please make a airline reservation from SEA to CLT to attend a workshop in Charlotte?

ASSISTANT: Sure, could I have your journey dates?

USER: My journey dates are on Dec 23rd and 25th.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Is there any other specifications, do you have?

USER: I want to return back in morning flight.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available as per your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.