You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me in booking my flight ticket from MCO to ATL?

ASSISTANT: Sure, let me know your travel dates please?

USER: My travelling dates will be May 8th and May 10th.

ASSISTANT: Ok, is there any class preference?

USER: No, I am ok, with any class.

ASSISTANT: Do you need any airline preference?

USER: I am ok, with any airline.

ASSISTANT: Do you have any time concern?

USER: My return time should be in the evening.

ASSISTANT: Can I know your name please?

USER: I am Janet Clark.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: Its ok, thank you.

ASSISTANT: Thanks for contacting us.