You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Can you book me a flight with the name Patricia Lopez in a connecting flight to Dallas?

ASSISTANT: Sure. Let me know your travelling dates.

USER: I want to fly on 03/12 to 03/14.

ASSISTANT: To proceed booking I need your airport codes.

USER: I want to fly from NY-JFK to TX-DFW.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no flights found on your given requirements.

USER: Thank you for the information.

ASSISTANT: Thank you.