You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jack Martinez.

ASSISTANT: How may I assist you now?

USER: Can you please help me to book a ticket from OAK to ORD?

ASSISTANT: Jack Martinez, may I know your travelling dates?

USER: My travelling dates will be on May 27 to May 29.

ASSISTANT: May I know your depart and return time?

USER: I want to return in the morning.

ASSISTANT: Do you need a connecting flight?

USER: I need a connecting flight.

ASSISTANT: Flight-1001 is available for you with 1 connection at the price of 1400 with business class. Can I book it?

USER: You can proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: THank you for choosing us.