Hi.
user
Hello. How may I help you?
assistant
I'm Cynthia Phillips. I want to celebrate my coming birthday with my parents staying at LGA, can you please book me a ticket from DEN?
user
Sure, I will help you out. May I know your travelling dates please?
assistant
My departure date is 04/17 and return date is 04/19.
user
OK, please wait a moment.
assistant
Sure.
user
Sorry, there are no flights found on these dates.
assistant
That's ok, thank you for your service.
user
Most welcome.
assistant