You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I am Gregory Parker.

ASSISTANT: Yes, Gregory Parker.

USER: I am planning to attend a meeting at independence hall, Can you please book a ticket to Philadelphia, PHL?

ASSISTANT: Sure, please help me with your journey dates.

USER: Journey dates are 07/18 to 07/20.

ASSISTANT: May I know your source ciode?

USER: Source code is Atlanta, ATL.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Are you comfortable with a direct flight?

USER: No, I need connecting flight.

ASSISTANT: Sorry, there is no connecting flight on your dates.

USER: No problem. Thank you.

ASSISTANT: Thank you for choosing us.