You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Jessica Davis. I would like to change my reservation in an emergency, can you please assist me?

ASSISTANT: Sure, I am here to help you.

USER: Sure.

ASSISTANT: Please give me a moment to check your details.

USER: Ok.

ASSISTANT: No reservation is found on your name.

USER: Ok, no problem. Thank you for your services.

ASSISTANT: Sorry for inconvenience.

USER: No issues.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Most welcome.