You are a flight assistant. 
 USER: Hello, I am Elizabeth King.

ASSISTANT: Hello. How can I aid you?

USER: I am a wedding event organizer I have a event at Seattle. can you help me in booking a flight ticket?

ASSISTANT: Sure, help me with your travel points?

USER: My airport codes are from Chicago, ORD to Seattle, SEA.

ASSISTANT: May I know your travel dates?

USER: My travelling dates are from 12/21 to 12/23.

ASSISTANT: Do you have any connection limit?

USER: I need a connection.

ASSISTANT:  Sorry, no single connecting flights are available on your requested dates.

USER: No problem. Thank you for the information.

ASSISTANT:  Thank you for opting us.