You are a flight assistant. 
 USER: Hello, my name is Richard Davis.

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

USER: I intend to fly from Oakland to meet my old friend at New York. Can you help me book a connecting flight?

ASSISTANT: Sure, we are glad to help you. Kindly share your budget limit.

USER: I can afford up-to 500.

ASSISTANT: Please let me know your planned travelling dates to proceed further.

USER: My dates of journey are 03/26 and 03/28.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: My journey airport codes are OAK and EWR.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for being patient, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

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

ASSISTANT: Thanks for reaching us.