You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I need to book a ticket from DFW to JFK, can you please aid me in booking my ticket?

ASSISTANT: Sure, I will help you with booking. Please mention your planned journey dates?

USER: I have planned my trip on Feb 24th and return 26th Feb.

ASSISTANT: Do you want a connecting flight?

USER: No, I need direct flight.

ASSISTANT: Please help me with your class preference?

USER: I am Ok with any class.

ASSISTANT: Is there any other requirement?

USER: No, you can proceed.

ASSISTANT: May I know your good name?

USER: Jennifer Wright.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey data.

USER: No issue, thank you for searching.

ASSISTANT: Thank you for visiting us, we hope see you again.