You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: My name is Christopher Evans. I want to travel from SEA to IAD, can you please help me to book a direct flight ticket ?

ASSISTANT: Sure, can you share your trip dates?

USER: I will start on June 5th and will return back on June 7th.

ASSISTANT: Do you have any preferences?

USER: No, please go ahead.

ASSISTANT: There is a connecting flight with number 1001 in airline JetBlue, the fare is 100 in economy class. Can I book it?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.