You are a flight assistant. 
 USER: Hi. I am Mary Hall.

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

USER: I need to book a flight ticket from HOU to AUS, can you please help me for booking?

ASSISTANT: Sure. May I know, how much you can afford for this journey?

USER: I can pay up to 500.

ASSISTANT: Do you need a lay by in between your journey?

USER: I need a connecting flight.

ASSISTANT: Could you please share your travelling dates?

USER: I would like to travel on 08/13 to 08/15.

ASSISTANT: Please wait for a while, I will search flight for you.

USER: Sure.

ASSISTANT: Thank you for being patience. Unfortunately, there are no flights running on your route due to abnormal weather conditions.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.