You are a flight assistant. 
 USER: Hi, my name is Kevin Roberts.

ASSISTANT: Hello. How may I be of your assistance?

USER: I am heading from New York, NY - LGA to attend a film festival at Oakland, CA - OAK. Can you help me with the booking?

ASSISTANT: Sure, can I know your connection preference?

USER: I prefer a single connection.

ASSISTANT: Kindly mention your planned travelling dates to proceed further.

USER: I would like to travel on 09/25 and return on 09/27.

ASSISTANT: May I know your budget preference?

USER: I can afford up-to 200.

ASSISTANT: Just a moment i will check and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there are no flights found with your essential details.

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for approaching us.