You are a flight assistant. 
 USER: Hello. I am Deborah Allen.

ASSISTANT: Hello, how can I assist you?

USER: I have planned for a round trip at Philadelphia, PA - PHL with my friends. Can you please book a connecting flight?

ASSISTANT: Sure, when are you planning to travel?

USER: 12/01 and 12/03 are my travelling  dates.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Frontier airlines with single connection and price is 200 of 1005 flight. Shall I proceed?

USER: Yes, please.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you.