You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Shirley Hernandez, I want a flight to attend a live music concert on 05/10 at Washington DC. Help me to find a flight with one connection.

ASSISTANT: Sure, may I know your airport abbreviates?

USER: I will fly from PA-PHL to DC-IAD.

ASSISTANT: Please provide your return day?

USER: My plan to return on 05/12.

ASSISTANT: We have found a flight:1004 in Delta airlines and price is 100 with single connection.

USER: Please book the flight ticket.

ASSISTANT: Your booking has been confirmed, thank you for approaching us.

USER: Thank you for booking the flight ticket.