You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Can I know your travelling dates?

USER: I want to depart on July 13 and intend to return on July 15.

ASSISTANT: Is there time preference?

USER: No.

ASSISTANT: Do you have specification?

USER: I am looking for a flight with single connection.

ASSISTANT: Can I know your name?

USER: Myself Katherine Lewis.

ASSISTANT: Found ticket with American airlines for price 300. Shall I book a ticket?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is booked having flight number 1024.

USER: Thank you.

ASSISTANT: Thank you.