You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking my flight ticket from EWR to SEA?

ASSISTANT: Sure, help me with the trip dates?

USER: My travelling dates are Apr 01 and 03.

ASSISTANT: May I know your name please?

USER: Myself Dorothy Thomas.

ASSISTANT: Do you have any preferences?

USER: I need direct flight.

ASSISTANT: Sorry, no flights were available at this moment.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.