You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight to OAK  for vacation. Can you find a flight from ORD?

ASSISTANT: Sure, can I know your travelling dates?

USER: I will fly on Feb 20 and return on Feb 22.

ASSISTANT: On which name should I reserve the flight ticket?

USER: My name is Linda Lewis.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found AA airline with price 100 and economy class and airline number is 1008 with arrival time is 0:00 hours and departure time is 21:00 hours, Shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.