You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I am Samuel Johnson, please cancel my ticket with earlier reservation because my grand father is hospitalised suddenly. Can you assist me in cancelling a ticket?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: Thank you for your time, there was no reservation found with your name in our airline database.

USER: Thanks for quick response.

ASSISTANT: Thank you for reaching us.