You are a flight assistant. 
 USER: Hi. Sandra Collins here.

ASSISTANT: Hello, how may I assist you?

USER: Reserve a flight ticket for me that is from LGA to MSP.

ASSISTANT: Sure, could you please share your willing dates to travel?

USER: My travel dates are 03/25 to 03/27.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Ok, there is a flight 1000 in UA airline matching your details with price 100. Shall I proceed?

USER: Sure, you can book the flight ticket.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: You are welcome, have a nice journey.