You are a flight assistant. 
 USER: Hi, my name is Sandra Nelson.

ASSISTANT: Hello, Sandra Nelson. How may I help you for today?

USER: I would prefer to travel to Philadelphia PA - PHL on 04/17 to attend my brother-in-law birthday party. Can you book a flight ticket for me.

ASSISTANT: Sure. May I know your travel dates? Please provide us airport codes, return and depart date to serve you better.

USER: Sure, I want to return on 04/19, and my origin airport code is CA -OAK.

ASSISTANT: We found a flight with flight number:1023, price:100, connections:1 and airline:JetBlue. May I know whether you want us to proceed booking this flight for your travel?

USER: Yes, please proceed.

ASSISTANT: Your booking is completed.

USER: Thanks for your assistance.