You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I have to attend a Live Concert at Atlanta, could you please help me with booking a flight ticket from PHL to ATL?

ASSISTANT: Sure, to do that I need to know your planned trip dates. Will you please share them?

USER: I would like to depart on Mar 17th and return on Mar 19th.

ASSISTANT:  How many connections are required for this particular journey?

USER: I would be comfortable with single stopover.

ASSISTANT: Do you need an economy class or business class?

USER: No, but I need a normal- cost airline.

ASSISTANT: Ok, you are almost done, Can you please forward your name?

USER: I am Kimberly Campbell. And make sure that my return time must be evening.

ASSISTANT: Thank you for your details. Sorry, no flights were available at this moment .

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us. Have a nice day.