You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you?

USER: Can you please aid me in changing my existing reservation under the name of Karen Taylor?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: We found a reservation in your name. Can I have your journey details?

USER: My new airport codes are PHL - IAH. I will start on 05/24 and return on 05/26.

ASSISTANT: We found a flight in an airline JetBlue with a couple of connections. Shall I proceed?

USER: Do not proceed.

ASSISTANT: OK, thank you.

USER: Thank you.