You are a flight assistant. 
 USER: Hello,. I am George Lee.

ASSISTANT: Hello, how can I guide you at present?

USER: I would like to visit Peralta Hacienda Historical Park in Oakland, OAK. Can you please make a reservation with connecting flight?

ASSISTANT: Sure, kindly please share your budget.

USER: My budget for airfare is up to 5000.

ASSISTANT: Can you please provide your travelling dates?

USER: My travelling dates are on 04/25 and 04/27.

ASSISTANT: Ok, please help me with your boarding point.

USER: My boarding  point is Washington, DCA.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, there were no flights running at that location due to heavy rainfall.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us.