You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Kimberly Robinson. Please help me to book a flight ticket from IAD to SEA.

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are from Apr, 09 to Apr, 11.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you need any flag stop in your journey?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I need to return in the morning.

ASSISTANT: We found a direct flight with fare of 200 and 1000 flight number. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your seat has been reserved with United Airlines in economy class and you will arrive in the morning time at 9:00 AM.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.