You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Janet Carter here.

ASSISTANT: How can I assist you today?

USER: I want to change my existing reservation due to sudden demise of my grand father. Can you please help me with this?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure.

ASSISTANT: Janet Carter, there is no reservation found under your name.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: You are welcome. Thank you for reaching us.