You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Debra Mitchell.

ASSISTANT: How can I serve you today?

USER: Owing to an emergency, I would like to cancel my recent reservation.Will you help me with this?

ASSISTANT: Sure, wait a second. I will check the update.

USER: Sure, I will wait for your information.

ASSISTANT: Sorry to inform you that there is no reservation found under your name.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for opting us.