You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your service?

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

ASSISTANT: Sure, we are glad to help you in booking. Please let me know your connection preference.

USER: I need a direct flight.

ASSISTANT: Kindly share if you have any airline preference.

USER: I have no airline preferences.

ASSISTANT: Could you please help me by providing your journey dates?

USER: I would like to depart on May 9th and return on May 11th.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

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

ASSISTANT: May I know your name please?

USER: I am Emily Harris.

ASSISTANT: Thank you.

USER: You are welcome.