You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Samantha Nelson. I want to book a flight reservation on the route from DFW to SEA, can you help me?

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

USER: My travelling dates will be from 04/24 to 04/26.

ASSISTANT: Let me check for the availability of flight.

USER: Ok, please check within the price of 1000 only.

ASSISTANT: Samantha, I am sorry to inform you that there is no flight available at your requested dates.

USER: Oh! That's ok, thank you for checking anyways.

ASSISTANT: You are welcome. Thank you for contacting us.