You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to make a flight ticket reservation from ORD to ATL, can you please help me?

ASSISTANT: Sure, when are you planning to travel?

USER: Sure, my planned travelling dates are Jun, 05 and Jun, 07 respectively.

ASSISTANT: Do you have any class preference?

USER: I am comfortable to travel in any class.

ASSISTANT: Is there any other preference you have?

USER: Yes, flight has to be with single connection.

ASSISTANT: Ok, may I know your name to proceed further?

USER: Sure, my name is Barbara Jones here.

ASSISTANT: Sorry, no flights found as per your requirement.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Thank you for contacting us.