You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to change my reservation as I have meeting for business, can you please help me out?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: Donna Hall here.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: I found your reservation, can you please provide your source and destination airport codes?

USER: I am travelling from JFK to DCA.

ASSISTANT: May I know your planned travel dates please?

USER: I am travelling on these dates April 5th and 7th.

ASSISTANT: Please let me know if you have any other specifications.

USER: I prefer departure time in the morning with single connected flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Spirit airlines is providing a flight on that route with ticket fare of 300 and 1 connection, it's departure time is 8:00 hrs. Shall I proceed for booking?

USER: Ok, you can proceed.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1007, have a safe journey.

USER: Thank you for your services.

ASSISTANT: Thank you for choosing us.