You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I have planned to visit Seattle, with my friends. But unfortunately, I need to change it due to the sudden work assigned by my manager on my holidays. Can you help me with changing my reservation?

ASSISTANT: Sure, please provide me your name?

USER:  Jessica Clark, is my name.

ASSISTANT: Please wait a minute.

USER: Sure, I can wait.

ASSISTANT: Sorry, there is no reservation with your name.

USER: That's ok, not a problem. Thanks for your assistance.

ASSISTANT: Thank you for reaching us.