You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am George Martin, can you help me to change my reservation?

ASSISTANT: Sure, please wait, let me check your reservation status in our database.

USER: Sure, take your time.

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

USER: No issues, thank you for your time.

ASSISTANT: You are welcome and thank you for choosing us.