You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How may I assist you?

USER: I want to reschedule my recent reservation as my plan to visit Central Park in New York got postponed. Can you help me in changing my reservation made on name Gregory Nelson?

ASSISTANT:  Ok, please hold on for a minute.

USER: Sure.

ASSISTANT: We found a reservation with your name. Please mention your travel dates?

USER: I would start on 05/18 and return on 05/20.

ASSISTANT: Ok, Is there any connection limit for you?

USER: Yes I need 1 connection.

ASSISTANT: Help me with your travel airport codes?

USER: My Destination is NY - LGA and Origin is TX - HOU.

ASSISTANT: Ok, please hold on for a minute. I will revert to you.

USER: Ok.

ASSISTANT: We found a 1005 Southwest airline, with price 100 having single connection. Shall I reserve?

USER: Yes please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.