You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I provide assistance to you?

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

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

USER: My reservation was done in the name of Joshua Rodriguez.

ASSISTANT: Please wait for a while.

USER: Sure.

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

USER: Not an issue. Thank you for checking.

ASSISTANT: Thank you for approaching us.