You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I render you at this moment?

USER: I want to cancel my recent reservation due sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, may I know your good name please?

USER: Patrick Miller here.

ASSISTANT: Ok, please wait for few minutes.

USER: Ok.

ASSISTANT: There is no recent reservation found on your name in our records.

USER: That's Fine. Thank you.

ASSISTANT: Thank you for your help.