You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER:  I am Linda Clark want to travel to MN-MSP to meet my mother.

ASSISTANT: Sure. Can you please provide journey details?

USER: I will depart from TX-DFW.

ASSISTANT: Can I know your travelling dates?

USER: My travel days are 05/20 and 05/22.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight within price 500.

ASSISTANT: Thanks for the information. We did not found any direct flights matching your requirements.

USER: Ok, thank you for your response.

ASSISTANT: Thanks for contacting us.