Hi.
user
Hello. How can I assist you today?
assistant
I am Justin Thomas. I am planning to travel from LGA to OAK, can you help in booking a flight  for me?
user
Sure, can you please share your travel dates?
assistant
I like to travel on 06/14 to 06/16.
user
Let me check for the availability of flight. Justin, I am sorry to inform you that there is no flight available at your request.
assistant
proceed for booking. Thank you for checking.
user
Thank you for reaching us, have a great day.
assistant