You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I need to amend an existing reservation due to health issues, can you please help me out?

ASSISTANT: Sure, may I know your good name please?

USER: Sure, my name is Pamela Baker here.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure, I will wait.

ASSISTANT: There is no existing reservation found on your name in our records.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.