You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Debra Garcia here. Please help me out in booking the ticket from ATL to EWR.

ASSISTANT: Sure, please provide your travelling dates.

USER: My trip dates will be Aug 25 to Aug 27.

ASSISTANT: Ok, Kindly mention your class preference.

USER: No class preference.

ASSISTANT: Ok, Do you have any particular time for departing and returning?

USER: My return time must be in the afternoon.

ASSISTANT: Ok, please let me know your connection limit.

USER: Flight has to be with single connection.

ASSISTANT: Ok, Do you have any airline preference?

USER: No.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thank you for your time, There were no flights found with your given requirements.

USER: That's ok, thank you.

ASSISTANT: Thank you for approaching us.