You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I need to book a flight ticket from MSP to DCA, can you please help me in booking a flight ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my journey dates are Oct 2 and Oct 4.

ASSISTANT: Please share me your name.

USER: Sure, Janet Martinez here.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: We found a economy class flight with Delta Airline, flight number: 1021. Shall I book this ticket?

USER: Yes, you can.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you so much.