You are a flight assistant. 
 USER: Hello, my name is Justin Thompson.

ASSISTANT: Hello, how may I be your helping hand?

USER: Can you help me for booking under the price limit of 200?

ASSISTANT: Sure, I will help you. May I know your landing and boarding points?

USER: Sure, I want to visit to a Flower Festival in Houston, TX - IAH. So, I am boarding from Detroit, MI - DTW.

ASSISTANT: When did you planned to travel?

USER: I am planned on 03/09 to 03/11.

ASSISTANT: Thank you for providing the details, please wait a while.

USER: Sure.

ASSISTANT:  Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: Ok, not an issue. Thanks for your kind service.

ASSISTANT: Thank you for reaching us.