You are a flight assistant. 
 USER: Hello, myself Dorothy Mitchell.

ASSISTANT: Hello, how may I assist you?

USER: I would like to book a flight ticket to SEA from EWR, could you please help me out?

ASSISTANT: Sure, can you please share your planned travel dates?

USER: Sure, my trip dates are from 04/26 to 04/28.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: That's ok, thank you for the information.

ASSISTANT: You are welcome.