Hello, Nancy Perez here.
user
Hello, how can I assist you?
assistant
I am planning to attend a seminar on global warming at Chicago, can you please book me a ticket from DCA to ORD?
user
Sure, I'll help you in that. Please provide your preferable dates to do journey.
assistant
My planned dates of journey are from 09/24 to 09/26.
user
Fine, please wait a moment.
assistant
Sure, I will wait for your response.
user
I'm sorry to inform you that there are no flights available for you on those dates.
assistant
Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.
user
Thank you for choosing us.
assistant