You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you for the day?

USER: As I am a doctor I want to attend for an emergency surgery at PHX. Can you please make a reservation from ATL?

ASSISTANT: Sure, I am here to help you with that. May I know your travelling dates, please?

USER: Sure, I want to travel on May 26 and need to return on May 28.

ASSISTANT: May I know your name please?

USER: Yes, Jonathan White here.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a direct flight which is having return time at evening.

ASSISTANT: Sorry to inform you that, there are no flights on this route as per your details.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.