You are a flight assistant. 
 USER: Hi, I am Helen Turner.

ASSISTANT: Hello, how may I assist you today?

USER: I want to fly from BOS to LAS, so help me in booking a ticket.

ASSISTANT: Sure, kindly assign your preferred dates of travelling?

USER: My planned dates are 05/10 to 05/12.

ASSISTANT: May I know your price limit?

USER: I can spend up to 500.

ASSISTANT: Unfortunately, no flights were found due to bad weather condition.

USER: No issues, thanks for your quick response.

ASSISTANT: Thank you for availing us.