You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to book a ticket from SFO to OAK, can you help me?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travel dates are 03/27 and 03/29.

ASSISTANT: May I know your name?

USER: Myself Alexander Lopez.

ASSISTANT: There is a flight-1001 is available for you, shall I proceed?

USER: You can book it.

ASSISTANT: Your booking is done.

USER: Thank you for booking.

ASSISTANT: Welcome.