You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Oakland to analyse the weather condition in summer. Can you help me in booking a flight ticket?

ASSISTANT: Definitely, may I know your source and destination airport codes please?

USER: Sure, I would like to take off from JFK airport because it is near to my location and land on OAK airport.

ASSISTANT: Can you provide me your planned dates of journey?

USER: My preferable dates are from 05/29 to 05/31.

ASSISTANT: Fine, please give me few seconds to check the flights availability.

USER: Sure, take your time.

ASSISTANT: Flight-1019 from Spirit airline is having few vacancies, travel charge is 100 and with 1 connection. Can I proceed booking?

USER: Ok, you can proceed with the booking.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Timothy Mitchell.

ASSISTANT: Your reservation has been done successfully, have a safe flight.

USER: Thank you for helping me out.

ASSISTANT: My pleasure, thank you for utilising our service Mitchell.

USER: Welcome.