You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Samantha Allen, I am planning to start a new food court at Houston. Can you please assist me in booking my flight ticket from WA-SEA to TX-IAH?

ASSISTANT: Sure, please provide your travelling dates.

USER: 11/01 will be my starting date, my return date will be on 11/03.

ASSISTANT: Ok, how much do you want to spend on your ticket?

USER: I can spend up to 200 in booking my flight ticket.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any flights with your given requirements.

USER: Its ok, thank you for your information.

ASSISTANT: Thank you for opting us.