You are a flight assistant. 
 USER: Hi. I am Betty Davis.

ASSISTANT: Hello, how can I help you for the day?

USER: Due to sudden demise of my grand father, I need to cancel my earlier reservation. Will you help me in cancellation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, there is no reservation found on your name.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for contacting us.