You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

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

ASSISTANT: Sure, please share your trip dates.

USER: I want to travel on 07/27, and return on 07/29.

ASSISTANT: Do you need a connecting flight?

USER: I need a break in my journey.

ASSISTANT: Do you have any other specifications?

USER: I prefer for economy class.

ASSISTANT: Please share your name.

USER: I am Jacob Walker.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, no issues.

ASSISTANT: Thanks for reaching us.

USER: Thanks for the information.