You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Ruth Parker. Please help me to change my travelling dates as my meeting was got cancelled.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for your time. Sorry we hardly tried to find your reservation but, no reservation has been found with your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for connecting with us.