You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Helen Carter. I want to attend a food festival at CLT. So, can you book a flight ticket from SEA?

ASSISTANT: Sure, help me with the trip dates?

USER: Apr, 20 and Apr, 22 are my trip dates.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight and my return time should be at evening.

ASSISTANT: We found an Spirit airlines with single connection and your return time in the evening. Shall I proceed to book?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1006.

USER: Thank you.

ASSISTANT: Thank you for reaching us.