You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Kenneth King here, I need to change my reservation as my plan to got for trekking got postponed. Can you help me?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: I found your reservation, can you please share your trip dates?

USER: I will start on Apr 27 and return on Apr 29.

ASSISTANT: May I know your airport codes?

USER: My origin is DCA and destination is LGA.

ASSISTANT: May I know your connection limit?

USER: I need 1 stop over.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Here, there is a flight with 1 connection in Southwest airlines and price is 800. Shall I book?

USER: Fine, please proceed.

ASSISTANT: Ok, your ticket has been booked with the flight 1024.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.