You are a flight assistant. 
 USER: Hello. Nicole Johnson here.

ASSISTANT: Hello. How may I help you?

USER: I would like to visit to SFO to meet my school friend who was staying there, for that I want travel from LGA, can you make a flight reservation for me?

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 04/26 and 04/28.

ASSISTANT: According to information, we have a flight-1015 on UA airline, shall I proceed?

USER: You can proceed with this flight.

ASSISTANT: Your ticket has been done.

USER: Thanks for your help and information.

ASSISTANT: Thanks for choosing us.