You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you today?

USER: I am Catherine Wright. I am planning to visit Central Park at New York, could you please help me with booking a flight ticket from SEA to EWR?

ASSISTANT: Sure Catherine, I will help you with that.  Can I have your travel dates please?

USER: I would like to take off on 12/13 and return on 12/15.

ASSISTANT: Ok Catherine Wright, please wait a moment to check flight availability in your route.

USER: Sure, take your time.

ASSISTANT: Sorry Catherine Wright, no flight is available to you on your dates due to all airlines are busy.

USER: That's ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

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