You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Pamela Perez here. Can you help me to find a flight from IAD to LAX?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are 01/29 and 01/31.

ASSISTANT: Let me check for the availability of flight.

USER: Sure.

ASSISTANT: Pamela, there is no flight available at your requested dates.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for reaching us.