You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: As I have urgent meeting in office I want to change my reservation, can you help me?

ASSISTANT: Sure, please give me a moment, I will check with my database.

USER: My name is Emily Thompson. OK.

ASSISTANT: Can you provide your name? Ok, there is no reservation found on your name.

USER: No problem. Thank you for checking.

ASSISTANT: Thank you for reaching us.