Hi.
user
Hello, How can I serve you?
assistant
Can you please book a flight ticket for me?
user
Sure, Can you please provide me with your journey details?
assistant
My journey details are  from Denver,CO-DEN to Charlotte,NC-CLT. My travelling  dates are Aug 21 and return on Aug 23. Can you please check whether the flight is available or not?
user
OK, Give me a minute I will check the availability and let you know.
assistant
OK.
user
Thanks for your patience.
assistant
It's OK.
user
We are sorry to say this we did not find any flights as per your requirements. May I know your name please?
assistant
Thank you. I am Amy collins.
user
Thank you have a nice day.
assistant
Wish you the same.
user