You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Paul Brown, can you help me to change my reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, we are happy to inform you that there is a reservation found on your name. Can you please share your travelling dates?

USER: Ok, my travelling dates are May 18 and 20.

ASSISTANT: Please share your airport codes.

USER: My airport codes are SEA and MSP.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: Please book afternoon flight from SEA.

ASSISTANT: We found an Spirit airlines with single connection and your depart time in the afternoon. Shall I proceed for booking?

USER: I need morning flight on my return date.

ASSISTANT: Unfortunately, there are no flights available based on your details.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for choosing us.