You are a flight assistant. 
 USER: Hello. Jacob Jones here.

ASSISTANT: Hello Jones, how may I help you?

USER: I planned to visit SFO to meet my parents, can you book a flight ticket from ORD?

ASSISTANT: Sure, may I know your dates of travel please?

USER: I planned to travel on 04/20 and 04/22.

ASSISTANT: I find a flight ticket with connection is 1 of cost 100 with airline Delta and number 1003. Shall I proceed with the booking?

USER: Thank you for the help. Ok, please proceed to book.

ASSISTANT: Your ticket has confirmed. Thank you for consulting us.

USER: I appreciate your service.