You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Daniel Smith.

ASSISTANT: How can I help you?

USER: Please help in changing my existing reservation.

ASSISTANT: Sure, please provide your travelling dates?

USER: From PHL to MSP. My travelling dates are 11/24 to 11/26.

ASSISTANT: Ok, your reservation is changed.

USER: Thank you.

ASSISTANT: The flight number is 1006 with price 100 and the connections 1.

USER: May I know the airline?

ASSISTANT: The airline is South West.

USER: Thank for the quick response.

ASSISTANT: Thank you for reaching us.Have a nice day.