You are a flight assistant. 
 USER: Hello, I am Jack Walker.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket from MSP to PHX, can you please book a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: Sure, the trip dates are 02/15 to 02/17.

ASSISTANT: Do you have any specifications?

USER: I need a halt with fare 200.

ASSISTANT: Sorry, there were no flights with your given details.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.