You are a flight assistant. 
 USER: Hi. I am George Roberts.

ASSISTANT: Hello, how can I be your helping hand?

USER: Owing an emergency want to change my reservation, so can you help me with it?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check your reservation.

USER: Ok.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: That's ok. Thank you for the response.

ASSISTANT: Thank you for contacting us.