You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to change my current reservation due to urgent meeting, can you help me with that?

ASSISTANT: Sure, please help me with your name to change your reservation.

USER: I am Edward Young.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, I did not find any reservation by your name in our database.

USER: That's ok. Thank you for your service.

ASSISTANT: Thank you for reaching us.