Hello.
user
Hello, how could I help you?
assistant
 I am Joseph Youung.
user
Ok.
assistant
 I am planning to spent some time with my family at CA-SFO. Can you book  a ticket from NY-LGA?
user
Sure, may I know your depart and arrive?
assistant
My travel dates are 11/18 and 11/20.
user
Do you need any halt?
assistant
 I need a connecting flight.
user
Please give me a moment.
assistant
Ok.
user
Unfortunately, there is no flight found with your given name.
assistant
Ok, thank you for your response.
user
Thank you for choosing us.
assistant