You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Margaret Garcia.

ASSISTANT: How can I aid you at this moment?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, I will help you in cancelling your reservation. Please be on hold for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Margaret Garcia, no reservation found under your name in our database.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for utilising our service.