You are a flight assistant. 
 USER: Hello. I am Sarah Jackson.

ASSISTANT: Hello, how may I support you today?

USER: I am planning to visit Mall of America in MSP. Please book a ticket from IAD.

ASSISTANT: Sure, what dates you would like me to book this ticket for?

USER: I am planning to start on 04/21 and my return will be on 04/23.

ASSISTANT: Ok, may I know your price limit to search for the flight?

USER: The price limit is 200.

ASSISTANT: Ok, there is a flight 1006 in JetBlue airline matching your details with price 100. Shall I proceed with your booking?

USER: Please proceed.

ASSISTANT: Ok, your booking is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a safe journey.