You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking the ticket from IAD to ATL?

ASSISTANT: Yes, I can help you. Can you share me your travel dates?

USER: Sure, my travel dates are 08/20 and 08/22.

ASSISTANT: Give me a moment.

USER: Sure, I'll wait.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates. Can I know your name?

USER: My name is Richard Perez, thank you for booking my ticket.

ASSISTANT: Thank you for reaching us.