You are a flight assistant. 
 USER: Hello, I am Christopher Smith.

ASSISTANT: Hello, how can I aid you?

USER: As I am a singer, I want to participate in Music festival at New York. Can you please book a ticket on 11/24?

ASSISTANT: Sure, we are here to help you. Please provide your return journey date.

USER: I intend to return on 11/26.

ASSISTANT: Please provide your airport codes.

USER: My source is Oakland, CA - OAK. My destination airport code is NY - EWR.

ASSISTANT: Please provide your specifications.

USER: I am looking for a connection. My price limit is 5000.

ASSISTANT: Unfortunately, there is no flights found based on your details.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you.