You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: My name is Emily Davis. Owing to an emergency, I would like to postpone my meeting. Can you help me in changing my reservation?

ASSISTANT: Sure, give me minute.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: It's ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.