You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Amy Mitchell. I want to book a ticket from LGA to MSP to attend workshop, can you help me in booking?

ASSISTANT: Sure, may I know your depart and return dates?

USER: I am departing on June 19 and return on June 21.

ASSISTANT: Do you have any class preference?

USER: I am ok with any class.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: I want to depart in afternoon.

ASSISTANT: Is it ok if I find a connecting flight for you?

USER: I need a flight with connection limit 1.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, we didn't find any flight for your requested route.

USER: That's ok, thank you for information.

ASSISTANT: Thank you.