You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I need to cancel my existing reservation, which is done recently. Can you please help me out?

ASSISTANT: Sure, please mention your name to check your reservation details in our database.

USER: Thank you for considering my request and my name is Christopher Lopez.

ASSISTANT: Thank you. Please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: We have found your reservation and we have cancelled it.

USER: Thank you for your help in cancelling my existing reservation.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.