You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Kathleen Perez. I need your assistance in booking a flight ticket from IAH to SEA. Can you please help me?

ASSISTANT: Sure, I will help you. Can you please share your planned dates?

USER: Ok, my travelling dates are 06/26 and 06/28.

ASSISTANT: Please wait a moment, I will check the availability of flights.

USER: Ok, take your time.

ASSISTANT: Kathleen, no flights has been found on your provided journey dates.

USER: It's ok, thank you for spending your time.

ASSISTANT: Thank you for choosing our services.