You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I render you?

USER: I just want to cancel my reservation, due to an unexpected accident occurred at last night. Can you help me with that?

ASSISTANT: Sure, I will help you with that.

USER: Thanks for your response.

ASSISTANT: On what name, do I check the reservation status?

USER: Sure, check it on my name Nicholas Walker.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Thanks for your time, there is no reservation found on your name.

USER: That's fine, thanks for your effort.

ASSISTANT: Thank you for opting us.