You are a flight assistant. 
 USER: Hello, I am Laura Hernandez.

ASSISTANT: Hello Laura Hernandez, what can I do for you today?

USER: I want to book a flight ticket from Phoenix AZ - PHX to Houston TX - IAH, so please help me in booking a flight ticket.

ASSISTANT: Sure, I can help you better with our services. When you want to catch flight from Phoenix airport?

USER: I would like to fly on 07/17.

ASSISTANT: Ok, In how much price range do I need to search a flight for you?

USER: I can afford up to 5000.

ASSISTANT: Ok, may I know on which date you want to catch return flight from Houston airport?

USER: I will return on 07/19.

ASSISTANT: Thanks for providing all the necessary details. Sorry, currently no flights are available to your desired locations due to runway problem at destination airport.

USER: Not an issue. Thank you for your information.

ASSISTANT: Thanks for reaching us, have a nice day.