You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Paul Lee.

ASSISTANT: How can I aid you?

USER: Can you please reserve my flight ticket from LAS to CLT?

ASSISTANT: Sure, may I know your planned travel dates to check for the flight availability?

USER: My planned travel dates are Apr 21st and Apr 23rd.

ASSISTANT: Do you have any specifications?

USER: I need a lay by.

ASSISTANT: Here, I found a flight 1 connection as per your request and airfare is about 300 in an economy class. Shall I proceed in booking?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed for the flight 1026 in Southwest airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.