Hi, I am Donna Miller.
user
Hello, how can I help you?
assistant
I need to book a ticket from CLT to LAX for enjoying  summer vocation in Los Angeles.
user
Sure, may I know your journey dates?
assistant
My travelling dates are 07/10 and return to  Charlotte on 07/12.
user
Thanks, for providing information.
assistant
Ok+.
user
Sorry to inform that no flights are found in your details.
assistant
Thank you for your information.
user
Thank you, for choosing us.
assistant