You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please book a flight ticket from LAX to OAK?

ASSISTANT: Let me know your travel dates.

USER: My travelling dates are Feb 26 and Feb 28.

ASSISTANT: Do you have any preference?

USER: I need a ticket in economy class.

ASSISTANT: Can I know your name?

USER: My name is Christine Clark.

ASSISTANT: Connecting flight can be booked with United airlines for price 200 having flight number 1001. Shall I book a ticket?

USER: Please proceed with booking.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.