You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sandra White here.

ASSISTANT: Welcome to Global airlines. What can I do for you?

USER: My friend invited me to visit his home, so can you help me searching flight from JFK to MSP?

ASSISTANT: Sure, but I want your travel dates it is easy to search flight?

USER: My travel starts from  06/21 to 06/23. Make sure with connection 1.

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

USER: Ok.

ASSISTANT: Sorry to tell you, I did not find any flight with this route, do you want any more help from me.

USER: Ok, no issue.

ASSISTANT: Ok.

USER: Thank you for your services.

ASSISTANT: It's my pleasure.