You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you aid me to change my reservation due to emergency?

ASSISTANT: Sure, may I know your good name?

USER: William Wright here.

ASSISTANT: We found a reservation on your good name.

USER: Thank you.

ASSISTANT: Please share me your planned travel dates.

USER: My travel dates are June 17 and June 19.

ASSISTANT: May I know your source and destination codes?

USER: My source and destination airport codes are IAD to LAX?

ASSISTANT: Do you have any other specifications?

USER: I prefer for connecting flight and normal cost airlines to travel.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: We found an airline: Hawaiian, flight number: 1023 and price is 200 with one connection.

USER: Please proceed for booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.