You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Margaret Miller here.

ASSISTANT: How can I assist you at this moment?

USER: Can you please help me out in cancelling my recent reservation? As my planned trip has been cancelled.

ASSISTANT: Sure, I will help in cancelling your reservation. Please give me a moment to check your reservation status.

USER: Sure, take your own time.

ASSISTANT: Margaret Miller, I didn't find any active reservation under your name in our database.

USER: Oh! May be my friend has already cancelled it. Thank you anyways.

ASSISTANT: Thank you for consulting us.