You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Me and friend want to visit Cloud Mount in ORD from SFO. So I want to book a ticket.

ASSISTANT: Could you please provide your travelling dates?

USER: Ok. Travel dates are 02/21 to 02/23.

ASSISTANT: There is a flight available with price 100 and flight number is 1013, would you like to proceed?

USER: Ok, proceed with booking.

ASSISTANT: Could you please provide your name to proceed further?

USER: My name is Helen Green.

ASSISTANT: Your booking is confirmed. Thank you for reaching us.

USER: Thank for your help. Great service.