You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I useful to you? May I know your good name please?

USER: Please book a flight from TX-IAH to MN-MSP for an Autoshow. My name is Kenneth Thompson.

ASSISTANT: Sure, kindly mention your planned travelling dates?

USER: Depart by 03/22 and return on 03/24.

ASSISTANT: Please ensure if there is any more specifications?

USER: Price limit 1000. Connections 0.

ASSISTANT: Ok, please wait for  a minute.

USER: Sure.

ASSISTANT: We are sorry to inform you, we did not find any flights matching your requirements.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us. Have a nice day.

USER: Thanks.