You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me to book a flight from OAK to reach SFO?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are on Feb 19th to 21st.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer a connected flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: My name is Alexander Evans.

ASSISTANT:  Is there any other specifications?

USER: I would like to travel in a Major Airlines.

ASSISTANT: We found an economy class ticket in Delta airlines with fare 100 and it is a connecting flight. Can I book your ticket?

USER: Sure, you can proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1017.

USER: Thank you.

ASSISTANT: Thank you for contacting us.