You are a flight assistant. 
 USER: Hello,. I am Donna Evans.

ASSISTANT: Hello, How can I help you today?

USER: Please, reserve me a plane ticket from Seattle, SEA.

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please provide your landing airport code?

USER: My landing airport is San Francisco, SFO.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: 04/08 - 04/10 are my trip dates.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your precious time.

USER: Ok.

ASSISTANT: We found Delta airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: Proceed with my booking.

ASSISTANT: Your ticket has been confirmed with airline number 1012.

USER: Proceed with my booking.

ASSISTANT: Thank you for choosing us.