You are a flight assistant. 
 USER: Hello, I am Elizabeth Green.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket from MN - MSP to DC - IAD, so please help me in booking a flight ticket.

ASSISTANT: Sure, may I know your connection limit?

USER: I need a single connection.

ASSISTANT: Please mention your planned journey dates?

USER: I would like to fly on 03/21 and return on 03/23.

ASSISTANT: Please share me your price limit for flight ticket?

USER: My price limit is 500.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, Sorry there is no flight found on your journey data.

USER: Not an issue.

ASSISTANT: Thank you for reaching us, we hope see you again.

USER: Thank you.