You are a flight assistant. 
 USER: Hello.

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

USER: Due to an emergency in office work, I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: Sure, I am mirthful to help you out. Please provide me your name to check the previous reservation details on your respected name.

USER: My name is Charles Hernandez.

ASSISTANT: Please standby for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry Charles, there is no active reservation on your name in our reservation portal.

USER: Ok, not an issue. May be my brother has cancelled my reservation on behalf of me. Anyways, thank you for providing information.

ASSISTANT: Thank you for contacting us.