You are a flight assistant. 
 USER: Hello, I am Brenda Williams.

ASSISTANT: Hello, how can I help you?

USER: As my schedule of attending an interview got postponed, can you help me in changing my reservation?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: There is no reservation with your name.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.