You are a flight assistant. 
 USER: Hello. I am Dorothy Davis.

ASSISTANT: Hello, how can I help you?

USER: I planned to attend for a meeting in DCA, can you please help me to book a flight ticket from PHL?

ASSISTANT: Sure, please share me your travelling dates?

USER: I prefer to travel on 09/28 and 09/30.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found 1020 UA airline with single connection and price of 100. Shall I proceed with it?

USER: Ok, please confirm my booking.

ASSISTANT: Your booking is done.

USER: Thank you for your assistance.

ASSISTANT: Thank you.