You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Actually, I want to change my reservation which is done recently due to some health issues, can you please help me out?

ASSISTANT: Sure, I am here to assist you. May I know your good name?

USER: Thank you. Sure, my name is Emily Lewis.

ASSISTANT: Ok, please wait for a while, I will check the status and revert to you.

USER: Sure, I will wait.

ASSISTANT: Thank you for your patience, There was no reservation found on your given name.

USER: Ok, no problem. Anyways, thank you for your service.

ASSISTANT: Thank you for reaching us.