You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Raymond Anderson here, I want to reserve my ticket from ORD to ATL, can you please help me?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, my planned dates of journey is from 04/12 to 04/14. I want a direct flight to travel.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure, I will wait.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: Ok, that's fine.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Anyways, thank you for your service.