You are a flight assistant. 
 USER: Hi. I am Katherine Baker.

ASSISTANT: Hello, how may I help you?

USER: I need to change my reservation as my farewell party got postponed. Can you help me?

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: That's ok, thanks for your response.

ASSISTANT: Thank you for reaching us.