You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Michelle Jackson.

ASSISTANT: Ok.

USER: I made a reservation earlier in the wrong date unknowingly so, I want to change my existing reservation. Can you please help me in that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait.

USER: Ok, I will wait for your positive response.

ASSISTANT: Thanks for waiting. There is no reservation found with your provided name in our records.

USER: Ok, no problem, my be I have reserved anther airline. Thank you for your help.

ASSISTANT: Thank you for reaching us.