You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to change my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Sure, can I know your name?

USER: My name is Jerry Brown.

ASSISTANT: We found reservation on your name, please provide your airport codes?

USER: I am willing to depart from PHL and land in MSP airport.

ASSISTANT: May I know your journey dates?

USER: I am departing on Apr 03 and willing to return on Apr 05.

ASSISTANT: Do you have any specifications?

USER: I need a flight with connection limit 1.

ASSISTANT: United airlines flight- 1001 of price 100 with connection-1 in economy class matches your given details, shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.