Hello. I am Amy Collins.
Hello, how may I help you?
I need to attend the meeting  on 08/21, so could you please help me in booking a ticket on 08/21 and return ticket on 08/23?
Sure, can I know your source and destination airport codes?
My travelling airport codes are IAH and DEN.
Sorry, there are no flights found on given schedule.
No problem, thank you for your information.
Thank you for reaching us.