You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you.

USER: I am Kimberly Scott and I just want to change an existing reservation due to my client meeting got post pone.

ASSISTANT: Sure, please give a moment I will check the status and revert you.

USER: Sure.

ASSISTANT: We found a reservation on your name. Can you provide your updates details?

USER: I need to reach Houston on 05/11 and my return would be on 05/13.

ASSISTANT: Ok, may I know your journey points?

USER: My airport codes are SFO-HOU.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Thank you. We have an Southwest airline with flight number 1009 and price of 200 available at this moment.

USER: Ok, you can proceed.

ASSISTANT: Your booking has been done.

USER: Thanks for your kind support.

ASSISTANT: Thank you for reaching us.