You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dennis Jones.

ASSISTANT: How may I help you today?

USER: Owing to an emergency, I just want to cancel my recent reservation.Can you please help me?

ASSISTANT: Sure, please be on hold.

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any reservation in your name.

USER: Ok, no worries at all. Thank you for your information.

ASSISTANT: Thank you for reaching us.