You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I am planning to visit the Paul reverse house which is located in Boston, BOS. Can you help me to book a flight ticket?

ASSISTANT: Sure, May I know the source code?

USER: My source is from Oakland, OAK.

ASSISTANT: Please help me with your journey dates.

USER: My itinerary dates are May 17 and 19.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a way station in my journey.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Sure, Susan Perez here.

ASSISTANT: Please wait a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Oh, It's very sad to hear from your side. Anyways, thanks for sharing the information.

ASSISTANT: Thank you for opting us.