You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you now?

USER: I am Michael Baker, can you help me to change my reservation?

ASSISTANT: Sure, I help you with that.

USER: Ok.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us, we hope see you again.