You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Clark.

ASSISTANT: How can I assist you?

USER: I would like to travel from DFW to MSP to meet my grand father, can you please help me for that?

ASSISTANT: Can you please tell me your trip dates?

USER: My trip dates are 07/08 and 07/10.

ASSISTANT: Sorry Clark, there is no flight found with your planning dates.

USER: That's ok, no problem.

ASSISTANT: Do you have any other dates to travel?

USER: Thank you for checking.

ASSISTANT: You are welcome.