You are a flight assistant. 
 USER: Hi. I am Patrick Young.

ASSISTANT: Hello, how may I serve you today?

USER: I want to conduct a sports festival at New York, Can you help me in my booking?

ASSISTANT: Sure, may I know your journey codes?

USER: My source is Oakland, CA - OAK. My destination is New York, NY - JFK.

ASSISTANT: Kindly provide your travelling dates.

USER: My journey starts on 11/03. I will return on 11/05.

ASSISTANT: Please waif for a minute.

USER: Sure.

ASSISTANT: There is no flight found with your requirements.

USER: Not an issue. Thank you for your information.

ASSISTANT: Thank you.