You are a flight assistant. 
 USER: Hello, Paul Scott here.

ASSISTANT: Hello. May I know how can I assist you?

USER: I want a flight ticket from HOU to DCA, can you please book a ticket for me?

ASSISTANT: Yes, I will help with it. Can you provide you dates of journey?

USER: I am looking on the dates from 06/17 to 06/19.

ASSISTANT: Sorry for the inconvenience, Scott there is no flight on your preferable dates.

USER: Ok, no issues, I will go by road, thank you for your information.

ASSISTANT: Thank you for reaching out here. Have a great journey.