You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I made a reservation earlier to go for a trip with my friends, due to important meeting with my share holders I want to cancel my recent reservation, will you help me with that?

ASSISTANT: Sure, can you please mention your name?

USER: Nicholas Williams here.

ASSISTANT: Please wait a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry there are no active reservation on your name in our database.

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

ASSISTANT: Thank you for choosing our service.