You are a flight assistant. 
 USER: Hi, Ashley White here.

ASSISTANT: Hello, how can I aid you today?

USER: Due to the continuous raining, my badminton tournament rescheduled to future dates. So I need to alter my existing reservation, can you help me with that?

ASSISTANT: Sure, please hold on a moment.

USER: Sure.

ASSISTANT: Thanks for holding on, no flight reservation found with your given name.

USER: Ok, no worries at all. Thanks for your kind service.

ASSISTANT: Thank you for opting us.