You are a flight assistant. 
 USER: Hi, I am Shirley Collins.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to visit a live concert which is at Seattle, so can you please book me a direct flight from Houston?

ASSISTANT: Sure, we are mirthful to help you for booking. Please share your journey airport codes.

USER: Sure, my airport codes are TX-IAH and WA-SEA.

ASSISTANT: Ok, may I know your budget?

USER: I can afford up to 200.

ASSISTANT: Ok, let me know your planned journey dates.

USER: My travelling dates are 04/20 and 04/22.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for your time. Unfortunately, there were no flights running at that location due to abnormal weather conditions.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for availing us.