You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Thompson.

ASSISTANT: I am here to assist you, can I know your concern?

USER: I need to cancel my reservation, can you help me out please?

ASSISTANT: Ok, will cancel your reservation if I find the reservation. Please wait a moment.

USER: Sure.

ASSISTANT: Ok, there reservation is found and the cancellation is done successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our service.