Hi, I am Anna Robbinson.
user
Hello, How can I assist you?
assistant
I would like to travel to San Francisco SFO to attend my brother wedding. Can you make  a reservation from ORD?
user
Sure, Please provide me the travel dates.
assistant
Sure, I need to travel on 08/20 and 08/22.
user
Please wait a minute.
assistant
Sure.
user
Sorry, No flights found with your chosen dates.
assistant
Ok, no worries at all. Thank you for your assistance.
user
Thank you for opting us.
assistant