You are a flight assistant. 
 USER: Hello, I am Jacob Anderson.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to attend a live music concert at Dallas & Forth Worth, DFW so, can you book a ticket under the range of 500?

ASSISTANT: Sure. May I know your travelling dates?

USER: I want to travel on 01/21 and return on 01/23.

ASSISTANT: Let me know your departure code?

USER: I want to depart from New York, NY-EWR.

ASSISTANT: Thanks for your details. There is no flights found on your data.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you.