You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: George Evans here.

ASSISTANT: How may I assist you today? Nice to meet you George Evans.

USER: I need your help in booking a ticket from EWR to LGA? As I have a doctor appointment. Can you please help me with that?

ASSISTANT: Sure, I am here to help you but I need your travelling dates to search a flight.

USER: Ok, my planned departure and return travel dates are 21st and 23rd of November.

ASSISTANT: Please wait for a minute, let me check.

USER: Sure, make sure that my departure time is afternoon.

ASSISTANT: George Evans, as per your information, we found a flight with airline southwest and price is 200, shall I proceed with this?

USER: That's perfect! You can proceed for booking the ticket.

ASSISTANT: Your ticket has been booked with flight number 1023.

USER: Thank you so much for your help in booking the ticket.

ASSISTANT: My pleasure, have a safe journey.