Hello.
user
Hello, how can I assist you today?
assistant
Myself Patrick Collins, can you help me to book a flight ticket on the dates 02/20 and 02/22?
user
Ok, can I know your nearest airport source code and target airport code?
assistant
Yes as I have a meeting in Washington DC, IAD and origin airport is IAH.
user
Ok, wait for a while.
assistant
Ok, please take your own time.
user
Ok, thank you your patience. Sorry Patrick here there is no flight available for your desired dates.
assistant
That's ok, my trip can be postponed. Thank you for assisting me.
user
Thank you for reaching us.
assistant