You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Deborah Mitchell. I want to book a flight ticket from SFO to DCA. Could you help me in booking?

ASSISTANT: Sure, we are mirthful to help you for booking.

USER: Thank you.

ASSISTANT: Let me know your budget.

USER: My price limit is 5000.

ASSISTANT: Ok, When do you want to travel?

USER: I will start on 11/06. I will return on 11/08.

ASSISTANT: Ok, please wait for sometime.

USER: Ok.

ASSISTANT: Sorry to inform you that, there were no flights found at your location due to heavy rainfall.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.