You are a flight assistant. 
 USER: Hello. I am Sarah Rodriguez.

ASSISTANT: Hello, how can I assist you?

USER: I want to change my existing reservation due to my project seminar got postponed.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: I found reservation with your name, so please provide your new journey details.

USER: Ok, I want to travel on  from 06/06 to 06/08. My source point is PHL and destination is LAX.

ASSISTANT: May I know your price limit?

USER: Price limit should be 1000. And connection limit is 1.

ASSISTANT: Please wait for a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. I found a direct flight.

USER: NO, I need connecting flight. Thanks for the information.

ASSISTANT: Sorry, no flights available with connection limit one.

USER: Ok, No problem. Thank you.

ASSISTANT: Thanks for choosing us.