You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I support you today?

USER: I made a reservation earlier on my name Thomas Mitchell. Can you help me in cancelling my reservation?

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Unfortunately there is no reservation found with your given name.

USER: Ok, thank you for help.

ASSISTANT: Thank you for opting us.