You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you aid me to book my ticket from PHL to IAD?

ASSISTANT: Sure, please provide your travelling dates.

USER: My trip dates are June 15 and June 17.

ASSISTANT: Ok, Do you prefer direct flight or connected flight?

USER: I prefer for connecting flight.

ASSISTANT: Ok, Is there any other preferences?

USER: I am looking for business class flight.

ASSISTANT: Thank you for providing details, we did not find any flights with your given requirements.

USER: Thank you for the help.

ASSISTANT: May I know your name?

USER: Gregory Adams here.

ASSISTANT: Thank you for reaching us.

USER: Thank you.