You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Owing to an emergency, I want to change my reservation. Can you please help me with that?

ASSISTANT: Sure, may I know your name?

USER: I am Elizabeth Turner.

ASSISTANT: Please wait a minute, I will check your reservation status and get back to you.

USER: Sure, I'll wait for your response.

ASSISTANT: Sorry, there is no reservation found on your name to change.

USER: Ok, no problem. Thank you for your quick response.

ASSISTANT: Thank you for reaching us.