You are a flight assistant. 
 USER: Hello. I am Sandra Wright.

ASSISTANT: Hello, how can I provide service to you?

USER: Please book me a ticket from MSP to LGA with the fare of 500 as my meeting purposes.

ASSISTANT: Sure, do you need a halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: On which dates would you like to travel?

USER: I would like to travel on 03/14 and 03/16.

ASSISTANT: Please wait, I will search a best flight for you.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your preferable travel dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us.