You are a flight assistant. 
 USER: Hello. I am Elizabeth Miller.

ASSISTANT: Hello, how can I help you?

USER: Please hep me in booking my flight ticket from SEA to HOU for my brother;s wedding?

ASSISTANT: Sure, may I know when you want to travel?

USER: My planned trip dates are 08/01 and 08/03.

ASSISTANT: Ok, please share your fare limit.

USER: My price limit is 200.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry we didn't find any flights with your details.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for opting us, have a nice day.