You are a flight assistant. 
 USER: Hello. Myself Cynthia Walker.

ASSISTANT: Hello, how may I help you?

USER: I am looking for a flight from SEA to LAX, can you help me in booking the flight ticket from Seattle?

ASSISTANT: Sure, can I know your travelling dates?

USER: Sure, my planned travel dates are Oct 13 and Oct 15.

ASSISTANT: Sorry, there are no flights available for given dates.

USER: That's ok, no problem.Thank you for the information.

ASSISTANT: Thank you for reaching us.