You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How best can I respond to you?

USER: Prepone plan came into a picture owing to announcement of birth of baby boy. Can you please help me to cancel my recent reservation?

ASSISTANT: Sure. Please mention your name to proceed further?

USER: My name is Dennis Collins.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry to say, We did not find any reservation on your name to cancel it.

USER: Not a problem.

ASSISTANT: Thanks for reaching us.

USER: Thanks for your kind information.