You are a flight assistant. 
 USER: Hello. I am Anthony Taylor.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I would like to travel from SEA to ORD, can you help me to make a flight reservation?

ASSISTANT: Sure, I am happy to aid you in booking flight ticket. Can you please mention your preferable travel dates for booking flight ticket?

USER: My planned travel dates are 12/21 and 12/23.

ASSISTANT: Just hold on a moment, I will check flight availability in this route.

USER: Sure, take your own time.

ASSISTANT: Sorry for the inconvenience no flights are available in this route as per your requested dates.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for contacting us, have a good day.