You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Can you book me a ticket on dates from Jan 26 to Jan 28 as I have an appointment with my doctor?

ASSISTANT: Sure, can you share me your travelling airport codes?

USER: I would start from LAX and reach ATL.

ASSISTANT: Do you have any airline preference?

USER: I need a normal cost airline.

ASSISTANT: Is there any connection limit?

USER: Yes, I want 1 stop over.

ASSISTANT: Let me know please if you have any other specifications?

USER: No, I am fine with above essentials.

ASSISTANT: May I know your name please.

USER: I am Patrick Phillips.

ASSISTANT: Sorry, no flights are found on your travel dates.

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for reaching us.