You are a flight assistant. 
 USER: Hello, I am Samantha Perez.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from IAD for visiting Freedom Park.

ASSISTANT: OK, provide me your travelling dates?

USER: My travelling dates are 07/21 to 07/23.

ASSISTANT: Can I have your destination?

USER: My destination is CLT.

ASSISTANT: I found a 1023 UA airline with single connection and price of 100. Shall I proceed with booking?

USER: Yes, you please proceed with it.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you, for the help.