You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Larry Edwards. I need to change my reservation due to I have given some wrong details while booking. So please help me with that.

ASSISTANT: Sure, give me a minute.

USER: Thank you. I will wait for your response.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Oh! May be it has not booked properly due to technical issues. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.