You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you now?

USER: I am Emma Moore. I want to go for a movie shooting at Boston due to owing an emergency I want to change my existing reservation, can you please help me?

ASSISTANT: Sure, we are glad to help you. Please wait for a while, I check out with your reservation.

USER: Ok, take your time.

ASSISTANT: Thanks for your patience, Sorry to inform you there is no any reservation found on your name.

USER: No issue, I will try with other alternative. Thank you for your time.

ASSISTANT: Thank you for contacting us, have a nice day ahead.