You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please cancel my reservation, due to cancel of my trip with colleagues?

ASSISTANT: Sure, please mention your name.

USER: My name is Larry Baker.

ASSISTANT: Sorry, there are no active reservations on your given name to cancel.

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

ASSISTANT: Thank you for reaching our service.