You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Laura Edwards here.

ASSISTANT: How can I assist you?

USER: Can you please help me in changing my recent reservation? As my planned trip has been postponed.

ASSISTANT: Ok, please wait for a while. Thank you for waiting.

USER: Sure, I'll wait.

ASSISTANT: I did not find any reservation on your name to change.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us.