You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I have to attend a meeting at PHL with client. Can you book a flight for me?

ASSISTANT: Ok, can you share me your boarding airport code?

USER: My boarding point is ORD.

ASSISTANT: Can you help me with your travelling dates?

USER: I will travel on Nov 23 and return on Nov 25.

ASSISTANT: Ok, may I know your name to proceed the booking?

USER: My name is Margaret Perez.

ASSISTANT: Let me know whether your preferring direct flight or connecting flight?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know any other requirements do you have?

USER: No, I do not have any other requirement.

ASSISTANT: Ok, we found a connecting flight of Hawaiian Airlines in the economy class with fare 100, can I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket is confirmed with flight number 1012 which departs at 3:00 hours and returns at 21:00 hours.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.