You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I am Donald Hernandez. I am planning to attend business meeting at OAK, can you please help me with booking a flight ticket from PHL?

ASSISTANT: Sure, please share me your trip dates.

USER: Sure, I would like to take off on June 15 and return on June 17.

ASSISTANT: Do you need any specifications?

USER: I need a flight with 1 connection.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a Delta airline and 1003 is flight number with a fare of 100.

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.

USER: You are welcome.