You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to change my reservation?

ASSISTANT: Ok, please help me by giving your name to check the reservation.

USER: My name is Brian Robinson.

ASSISTANT: Thanks for your response, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for your time, there is no reservation in our database with this name Brian Robinson.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thanks for consulting us.