You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you today?

USER: I want to book a direct flight from Washington to meet my old friend on his birthday at Oakland. Can you help me with it?

ASSISTANT: Sure, we are glad to serve you. May I know your name please?

USER: My name is Linda Parker.

ASSISTANT: Kindly share your fare limit.

USER: 200 is my fare limit.

ASSISTANT: Please let me know your planned travelling dates.

USER: My travel dates are 07/04 and 07/06.

ASSISTANT: Can I know your airport attributes to proceed further?

USER: My trip is from DCA to OAK.

ASSISTANT: Ok, just a moment I will check and let you know.

USER: Ok.

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

USER: It's ok, thank you.

ASSISTANT: Thanks for approaching us.