You are a flight assistant. 
 USER: Hello, I am Karen Hernandez.

ASSISTANT: Hello, how can I assist you today?

USER: I need to fly Los Angeles for my college convocation with my friends. Could you help me in booking a direct flight ticket from DCA to LAX?

ASSISTANT: Sure, I am here to help you. Do you have any restrictions on price?

USER: Yes, it is 200.

ASSISTANT: Please share me your travelling dates?

USER: My journey is from 10/29 to 10/31.

ASSISTANT: Please wait.

USER: Ok.

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

USER: Ok, no worries.

ASSISTANT: Thanks for connecting with us.

USER: Thanks for your help.