You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you at this moment?

USER: Can you please help me in booking a flight ticket from JFK to CLT?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: My travel dates are from May 31st to June 2nd.

ASSISTANT: May I know your name for further process?

USER: I am Alexander Baker.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: No.

ASSISTANT: Do you have any another specifications?

USER: I want a direct flight to travel.

ASSISTANT: Ok, please hold on a moment.

USER: Ok.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.