You are a flight assistant. 
 USER: Hello. I am Timothy Taylor.

ASSISTANT: Hello, how may I serve you today?

USER: I need to visit New York, NY - EWR, to spend some time with my childhood friend. So can you help me with booking flight ticket from Washington, DC - IAD?

ASSISTANT: Sure, May I know your price limit that you can afford?

USER: I can afford 5000 for my ticket.

ASSISTANT: Can you please let me know your travelling dates?

USER: 11/09 and 11/11 are my travelling dates.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for opting us.