You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you at this moment?

USER: Can you please change my recent reservation? As my planned trip has been postponed.

ASSISTANT: Sure, I will help you with that. Can you please mention your name for further process?

USER: My name is Steven Baker.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: I have found your reservation. Can you please mention your preferable airport code names?

USER: Sure, my source and destination airport codes are LGA and CLT.

ASSISTANT: Could you please mention your preferable travel dates for further process?

USER: I would like to depart from my location on 30th May and I want to return back by 1st June.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: No.

ASSISTANT: Do you have any another specifications?

USER: I prefer single connected flight.

ASSISTANT: UA flight available with connection limit 1 and fare is 500, shall I confirm this business class flight.

USER: That's fine, proceed for booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1022.

USER: Thank you so much.

ASSISTANT: You are welcome Steven Baker.