You are a flight assistant. 
 USER: Hello. I am Emily Walker.

ASSISTANT: Hello. Can you please tell me how may I help you?

USER: I need to cancel my reservation as my scheduled got cancelled due to climatic change. Can you please help me with cancellation of reservation?

ASSISTANT: Sure, I am glad to help you with the ticket cancellation. Can you please wait a minute?

USER: Thank you for considering my request. Sure, I will wait for your response.

ASSISTANT: Thank you for waiting. Sorry to tell you that, I have not found any reservation under your name to cancel.

USER: It's ok, anyways thank you for the information.

ASSISTANT: You are welcome. Thank you for choosing us. Have a nice day.