You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you from my end?

USER: I want to cancel my recent reservation, as m brother's marriage got postponed. Can you please help me with this?

ASSISTANT: Sure, I am glad to help you. Please provide me your name to check the reservation details.

USER: I am Cynthia Hernandez.

ASSISTANT: Sorry Cynthia, there is no reservation on your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.