You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Kimberly Lewis here.

ASSISTANT: Kimberly Lewis, how can I aid you today?

USER: Please help me out in booking the ticket from BOS to SEA.

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

USER: My trip dates will be Apr 11 to Apr 13.

ASSISTANT: Ok, do you have any specifications?

USER: My return time must be in the afternoon.\.

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

USER: Ok.

ASSISTANT: I found a flight for you with Delta Airlines and it costs you 200. Shall I proceed to reserve a seat in this single connecting flight?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with 1001 flight number.

USER: Thank you.

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