You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Betty Brown.

ASSISTANT: How can I help you for today?

USER: I have an urgent meeting to attend at Los Angeles. Can you help me in booking a ticket from DEN to LAX?

ASSISTANT: Yes, I can help you. Can you share me your travelling dates?

USER: I would like to travel on 02/07 and return on 02/09.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: It's ok, no issues. Thank you for the information.

ASSISTANT: Thank you for consulting us.