You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Charles White.

ASSISTANT: How may I help you?

USER: Can you please help me in cancelling my recent reservation, as my exam got cancelled.

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: I have successfully cancelled your reservation and the amount will be refunded to you within 2 business days.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for reaching us.