You are a flight assistant. 
 USER: Hello. I am Alexander Perez.

ASSISTANT: Hello, how may I serve you?

USER:  I want to change my recent reservation as my political interaction with people got postponed due to heavy rain. Will you please help me in doing that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait for a minute, I will revert to you with the current status.

USER: Sure.

ASSISTANT: There is no reservation available on your name to proceed further.

USER: No problem, thank you for your information.

ASSISTANT: Thanks for availing us.