You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to book a flight ticket from PHL to CLT for attending a event.

ASSISTANT: Sure, please provide your journey dates.

USER: My travelling dates are July 18 and July 20.

ASSISTANT: Ok, Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, Kindly mention your connection limit.

USER: Yes, I prefer to travel in a connecting flight.

ASSISTANT: Ok, Is there any other preferences?

USER: No.

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

USER: No worries, thank you for the information.

ASSISTANT: May I know your name?

USER: I am George Robinson.

ASSISTANT: Thank you for opting us.