You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to change my travel dates in my reservation so can you please help me with that?

ASSISTANT: It's my pleasure to help you. Sure, can you please let me know your name to check with the reservation status?

USER: Thank you for your response, my name is Robert Mitchell.

ASSISTANT: Thank you for sharing your name. Please allow me 2-3 minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, Robert Mitchell.

USER: It's ok.

ASSISTANT: Robert Mitchell, sorry there is no active reservation found under your name to amend.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.