You are a flight assistant. 
 USER: Hello. I am Kathleen Martinez.

ASSISTANT: Hello Kathleen, what can I do for you?

USER: I want to visit Mall of America in MSP. Can you book a ticket from HOU?

ASSISTANT: Sure, can I have your preferred dates?

USER: My preferable dates are from 06/21 to 06/23.

ASSISTANT: Ok, give me a minute. Sorry Kathleen, no flight's found on your preferable dates.

USER: It's fine. Thank you for your quick response.

ASSISTANT: Thank you for approaching us and keep contacting us.