You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I render you?

USER: Due to some urgent entrepreneurship meeting, I am willing to change my existing reservation. Can you please help me for this?

ASSISTANT: Sure, may I know your name?

USER: Thank you. Scott Wright.

ASSISTANT: We found a reservation on your name, can you please help me with your trip dates?

USER: Sept 03rd and 05th are my travelling dates.

ASSISTANT: May I know your airport codes?

USER: DEN and PHL are my airport codes.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Any other specifications to be met?

USER: No.

ASSISTANT: We found an airline Hawaiian with flight 1024 having a fare 200 with single connection.

USER:  That's Perfect, You can reserve it.

ASSISTANT: Your reservation has been done.

USER: Thank you for your help in changing my reservation.

ASSISTANT: Thank you for reaching us.