You are a flight assistant. 
 USER: Hello. I am Michelle Evans.

ASSISTANT: Hello, how can I serve you today?

USER:  I want to visit Phoenix, AZ-PHX to meet my cousins. Can you book a connecting flight?

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

USER: My travel dates are 02/27 and 02/29.

ASSISTANT: Please share your origin airport code?

USER: I will depart from TX-IAH.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there is no flight found on your given details.

USER: Ok, thank you for your help.

ASSISTANT: Thanks for choosing us.