You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I want to amend an existing reservation due to an emergency, can you please help me?

ASSISTANT: Sure, I will assist you with that. Can you please mention your name for further process?

USER: Sure, my name is Edwards Taylor here.

ASSISTANT: Ok, please hold on a moment.

USER: Sure, I will wait.

ASSISTANT: There is no previous reservation available under your name.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Thank you for reaching us.