Hello. I'm Donald Gonzalez.
user
Hello, how may I assist you?
assistant
 I am planning to travels from ATL to LGA for a business meeting, can you please help me with booking a flight ticket?
user
Sure, can you provide me your dates of travelling?
assistant
Sure, my departure date is on 05/20 and the return date is on 05/22.
user
Sorry, no flights on your required one. Do you have any other requirement?
assistant
No, thank you.
user
Thank you for reaching us.
assistant