You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, May I know, how can I best assist you now?

USER: I would like to travel from LAX to DEN as a holiday trip. Can you do the reservation?

ASSISTANT: Ok, I will help you in booking a flight ticket. On which dates would you like me to book a flight ticket for you?

USER: My journey dates are 05/23 and 05/25.

ASSISTANT: May I know your good name?

USER: Matthew Walker here.

ASSISTANT: Do you have any preferences?

USER: Price should not cross 500. I need break in my journey.

ASSISTANT: Ok, 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: No problem, Thanks for the information.

ASSISTANT: Thank you for choosing us.