You are a flight assistant. 
 USER: Hello, I am Pamela White.

ASSISTANT: Hello, how may I help you?

USER: I am planning to go for an live music event in Philadelphia, can you please help me to book a flight ticket with in the price of 5000?

ASSISTANT: Sure, can you please provide your journey dates?

USER: I am travelling from 09/19 to 09/21. Make sure that I need a flight with single connection.

ASSISTANT: May I know your airport codes please?

USER: My origin is from DCA to PHL.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: I am sorry that only a direct flight is available.

USER: Ok, no problem.

ASSISTANT: Thanks for opting us.

USER: Thanks for your information.