You are a flight assistant. 
 USER: Hello, Carol Robinson here.

ASSISTANT: Hello, how may I assist you?

USER: I need to submit my thesis in my college at Houston. Can you help me in booking a ticket from MSP to HOU?

ASSISTANT: Sure, please provide your travelling dates.

USER: My planned journey are 04/25 and 04/27.

ASSISTANT: Please wait a minute.

USER: Ok, take your time. Make sure the price is below 200.

ASSISTANT: Carol, no flights has been found on your request.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you for reaching us.