You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Hello, how may I aid you?

USER: I am planning to celebrate my birthday at Chicago, will you help me in booking the flight ticket from SEA to ORD?

ASSISTANT: Sure, please provide your itinerary dates.

USER: MY travelling dates are Mar 27 and Mar 29.

ASSISTANT: May I know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Which class do you prefer?

USER: I am comfortable in any class.

ASSISTANT: May I know your name?

USER: Myself Donald Baker.

ASSISTANT: Please wait for a while.

USER: I would like to depart in morning time.

ASSISTANT: Let me check for a best flight.

USER: Ok.

ASSISTANT: Sorry Donald Baker, no flight is available from Seattle in the morning.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.