You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I support you?

USER: My name is Anthony Carter, can you help me to book a flight ticket from ORD to IAD?

ASSISTANT: Sure, I am perky to help you. When are you willing to travel?

USER: Ok, please book a ticket on the dates Aug 14 and Aug 16.

ASSISTANT: Ok, do you need any lay by in between journey?

USER: No, I am looking for a direct flight.

ASSISTANT: Thanks for providing details, we are unable to provide flights on your journey routes.

USER: That is not a problem, I will book my ticket next time. Thank you for assisting me.

ASSISTANT: Thank you for contacting us.