You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to change my recent reservation as my political interaction with people got postponed due to heavy rains. Can you help me with that?

ASSISTANT: Oh! I am sorry to hear that. I will help you with your request. Please help me with your name.

USER: Thank you. I am Elizabeth Campbell.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: Elizabeth Campbell, I am sorry to inform you that there is no booking found on your name.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us. Have a great time.