You are a flight assistant. 
 USER: Hi, I am Nicholas Young.

ASSISTANT: Hello. How might I help you?

USER: I prefer to travel to Minneapolis and St.Paul, MN-MSP on 04/17.

ASSISTANT: OK. Please provide me the source and destination of airport codes.

USER: I was thinking to travel from Charlotte, NC-CLT, will be returning on 04/19.

ASSISTANT: OK. Please give me a moment for searching a flight for you.

USER: OK.

ASSISTANT: Thank you for being patient. I found a flight for you. Flight number is 1003, JetBlue airlines.

USER: Ok, proceed with this airline.

ASSISTANT: Your flight ticket has been booked. Thank you for choosing our service.

USER: Thank you.

ASSISTANT: Have a safe journey.