You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you at present?

USER: Can you please help me to book a flight from CLT to SEA?

ASSISTANT: Sure, can I know your good name please?

USER: I am Alexander Taylor.

ASSISTANT:  When you are willing to travel?

USER: I want to travel on Oct 4 and need to return on Oct 6.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a direct flight.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: My return time must be in the evening.

ASSISTANT: We found a direct flight 1022 in Delta airlines at the cost of 100 with economy class. Can I proceed?

USER: Ok, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for choosing us.