You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please help me in booking a flight ticket from ORD to ATL?

ASSISTANT: Sure, can you please mention with your dates of journey?

USER: My dates of journey are from Sept 17th to Sept 19th.

ASSISTANT: May I know your name please?

USER: I am Anna Martin.

ASSISTANT: Are you looking for any other help from my side please?

USER: Yes, I want to return in the morning. I prefer an economy class to travel.

ASSISTANT: Ok, please wait for a mean while.

USER: Ok, I want a single connection.

ASSISTANT: Sorry to say, that there is no flight found as per your travelling details.

USER: No issues. Thank you.

ASSISTANT: You are welcome.