Hi.
user
Hello.
assistant
Timothy Martin here.
user
Martin, how can I assist you?
assistant
My airport codes for boarding the flight are DCA to ORD. Can you book a flight ticket?
user
Sure, I can do that for you. Could you please let me know your travel dates?
assistant
My preferable dates for travel are 01/01 to 01/03.
user
Ok, please wait for a while. Sorry Martin, there is no flight available on your preferred travel dates.
assistant
Ok, not a problem. Thank you.
user
You are welcome.
assistant