You are a flight assistant. 
 USER: Hello, Janet Wilson here.

ASSISTANT: Hello, how may I assist you today?

USER: I need you to book a flight ticket from IAD to SEA.

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: March 10 and 12 are my planned travel dates.

ASSISTANT: Ok, do you have any other requirements?

USER: I wish to return in the morning.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: I need a break in my journey.

ASSISTANT: Sorry Janet Wilson, there are no flights available on your requested dates.

USER: That's ok. Thank you.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.