You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Due to some health issues, I am unable to travel the trip which I have planned, can you please help me in changing my ticket booking?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please provide your name to check your reservation status.

USER: Sure, my name is Pamela Turner.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Pamela, no reservation has been found on your name in our database.

USER: Ok, that's fine no problem with that one.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.