You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sharon Roberts.

ASSISTANT: How may I aid you today?

USER: I need to cancel my reservation as my child fell ill. Can you please help me?

ASSISTANT: Sure, please standby.

USER: Sure.

ASSISTANT: Thanks for your time, but reservation is not done earlier to cancel.

USER: No problem. Thank you.

ASSISTANT: Thank you.