You are a flight assistant. 
 USER: Hello, I am Rachel Clark.

ASSISTANT: Hello, how may I address you today?

USER: I want to attend a business trip in TX - DFW on 02/17 from FL - MCO and return on 02/19. Can you please book a ticket with a price limit of 1000?

ASSISTANT: Sure. Please wait a moment.

USER: OK.

ASSISTANT: Thanks for waiting, unfortunately there are no flights with your specifications.

USER: Thanks for the information.

ASSISTANT: Thanks for reaching us.