You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Stephanie Walker. I am planning to go for science exhibition at Philadelphia, PHL. Can you please book a ticket for me?

ASSISTANT: Sure, please let me know your travel dates.

USER: My depart is on 10/16 and return is on 10/18.

ASSISTANT: Can I have your origin please?

USER: Source code is Las Vegas, LAS.

ASSISTANT: There is a connecting flight with price 100, flight number is 1012. Shall I make a move?

USER: You can proceed. Thank you.

ASSISTANT: Your ticket has been confirmed with AA airlines. Thank you.