Hi. I am Christine Rodriguez.
user
Hello Christine. What kind of service you are expecting from us?
assistant
 I have to book a flight ticket  that I am unable to do, could you please help me in booking flight ticket on dates 09/25 and 09/27?
user
Ok, I can do that for you.
assistant
Thank you.
user
May I know your travelling airport codes?
assistant
Yes, my airport codes are DC-DCA and NC-CLT.
user
Ok, please stand by.
assistant
Ok.
user
Sorry Christine Rodriguez, no flights found on your requested travelling dates.
assistant
    That's ok. Thank you.
user
Thank you for choosing us, have a nice day.
assistant