You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Barbara Harris, can you help me to change my reservation?

ASSISTANT: I am here to help you, please wait for a while I will let you know the current status of your reservation.

USER: Sure, please go ahead.

ASSISTANT: Thanks for your patience, there is no reservation found with your name in our database.

USER: No issues with that. Thank you for your time.

ASSISTANT: Thanks for reaching us.