You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am planning to visit some places in Charlotte, so please help me to book a flight ticket.

ASSISTANT: Sure, I can help you with that. Can you please help me with your travelling dates?

USER: I am located in Washington, the nearby airport is IAD and the destination airport is CLT. The travelling dates are 10/15 and 10/17.

ASSISTANT: Ok, let me check for the availability of flight. May I know your name to proceed further?

USER: My name is Elizabeth Gonzalez.

ASSISTANT: Elizabeth, there is a flight available at your request with price 200. Would you like me to proceed the booking?

USER: Ok, please book the ticket.

ASSISTANT: Sure. Sure. Your booking is confirmed.Your flight number is 1023 with AA airline.

USER: Thank you for helping me to book a ticket.

ASSISTANT: You are most welcome. Thank you for contacting us.