You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Ruth Mitchell.

ASSISTANT: How may I assist you today?

USER: Due to some urgent business conference meeting, I am going to cancel my reservation. Can you please help me for this?

ASSISTANT: Sure, please wait for a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Based on your request I checked with your name in our database but I could not find any reservation previously.

USER: Not a big problem, anyway thank you very much for your kind information.

ASSISTANT: My pleasure.