You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I have planned for the trip to Philadelphia to enjoy in the coming holiday, can you book a flight ticket from IAD to PHL?

ASSISTANT: Ok, may I know your planned dates?

USER: Ok, my planned trip dates are on June 18 and return on June 20.

ASSISTANT: Please mention your name.

USER: Yes, I am Jessica Thomas.

ASSISTANT: Do you need a connecting flight?

USER: I prefer a connecting flight.

ASSISTANT: May I know your other requirements?

USER: No.

ASSISTANT: Flight-1001 is available for you with Frontier Airlines. Can I book it for you?

USER: Ok, you can proceed with the ticket booking.

ASSISTANT: Your ticket is reserved, thank you for choosing us.

USER: Thank you for your great service.

ASSISTANT: Have a safe journey.