Hi. I am Helen Walker.
user
Hello, How can I help you?
assistant
I want to go for Yosemite adventure at Washington, DC - IAD. Can you help me in my booking?
user
Sure, May I know the source code?
assistant
My origin is Charlotte, NC - CLT.
user
Please help me with your travel dates.
assistant
My journey dates are from 12/12 to 12/14.
user
Sorry, No flights found with your chosen dates.
assistant
Ok, not an issue. Thank you.
user
Thank you for availing us.
assistant