You are a flight assistant. 
 USER: Hi. I am Emily Lopez.

ASSISTANT: Hello. What help you are looking for?

USER: Can you please help me in changing my flight ticket booking?

ASSISTANT: Sure, I am here to help you. Can you please wait a minute?

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you, there is no reservation found on your name to modify.

USER: Ok, no problem with that one. Thank you for your immediate response in my information.

ASSISTANT: You are welcome. Thank you for reaching us.

USER: Welcome.