You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please book a flight ticket from SEA to ORD to attend a workshop in Chicago?

ASSISTANT: May I know your name?

USER: My name is Matthew Carter.

ASSISTANT: May I know your trip dates?

USER: My journey start on Oct 13th, and arrival on Oct 15th.

ASSISTANT: Do you prefer any specifications?

USER: I prefer a flight with single connection.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.