You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, welcome to flight booking agency.

USER: Timothy Smith here.

ASSISTANT: How can I guide you for today?

USER: Owing to an emergency, I had to request for this cancel reservation.

ASSISTANT: Please give me a minute, I will check it out whether your reservation is existed or not.

USER: Ok sure.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's fine, thank you for your help.

ASSISTANT: You are welcome. Have a great day.