You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dorothy Miller.

ASSISTANT: How may I assist you today?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, please wait a moment I will check the reservation status.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found by this name.

USER: Ok, no problem.

ASSISTANT: Thank you for consulting us.

USER: Thanks for your information.