You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to visit Philadelphia to attend a meeting, can you please book me a ticket from OAK to PHL?

ASSISTANT: Sure, I am gleeful to assist you. May I know your planned dates please?

USER: I am planning to depart on Jan 22 and would like to return on Jan 24.

ASSISTANT: Ok, please share your connection limit.

USER: I prefer connecting flight on this route.

ASSISTANT: Is there any another specifications on your trip?

USER: Please ensure that flight depart time is in evening time.

ASSISTANT: Can I have your name please?

USER: My name is Angela Wilson.

ASSISTANT: Thanks for your name, please wait.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for choosing us.