You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Ryan Walker, can you help me to book a flight on 03/29 and 03/31?

ASSISTANT: Sure, could you please provide your codes of airport to search for the flight?

USER: My airport codes are BOS and MSP.

ASSISTANT: Ok, please hold on for a moment.

USER: Ok.

ASSISTANT: Ok, there is a flight 1011 in Delta airline matching your details with price 100. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: You are welcome.