You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How may I help you?

USER: My name is Jacob Martin, can you be my helping hand in booking a flight ticket?

ASSISTANT: Yes, I will. Please, Can you ensure your travel details?

USER: Yes, my source is NY-LGA and Destination is TX-DFW. My travelling dates are from July/08 to July/10.

ASSISTANT: OK,.

USER: Please also make sure that the price limit must be 5000 and connection limit is 1.

ASSISTANT: Thanks for providing us your valuable information. Please, could you wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say, there is no flight as per your mentioned details.

USER: OK, Thanks for your response.

ASSISTANT: Thank you. Have a good day.