Hello,. I am Jack Wilson.
Hello, May I know, how can I best assist you now?
 I am going for a Grand Canyon Adventure at San Francisco so, can you avail me flight ticket?
Sure, we are here to help you.
Thank you.
On which dates would you like me to book a flight ticket for you?
I want to travel on 03/18, and need to catch return flight on 03/20.
May I know how much do you want to spend on flight ticket?
Make sure to check a flight with in a price limit of 500.
Can you please provide your take off and landing airport codes?
I need to leave from my nearest airport DCA to reach SFO.
Ok, please wait for a minute.
Sure.
 Sorry, no flights are available to your desired locations.
Ok, no issues. Thanks for the information.
Thank you for choosing us.