You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: There emergency meeting got changed to another location due to long journey for the clients, so can you please help me with changing my previous booking to new locations?

ASSISTANT: Sure,I am here to help you.

USER: Thank you so much.

ASSISTANT: May I know your good name please?

USER: I had booked the previous ticket on my name Jacob Clark.

ASSISTANT: Jacob Clark, sorry no reservation found on our database with your name.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.