You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a flight ticket from AZ - PHX to TX - HOU. Can you help me in that?

ASSISTANT: Sure, please share your travel dates.

USER: My trip dates are 06/18 - 06/20.

ASSISTANT: Do you need any specifications?

USER: I need direct flight.

ASSISTANT: For booking we need your good name, please provide it.

USER: This is Jacob Davis.

ASSISTANT: Sorry to say that, there are no flights available based on your requirements.

USER: Ok, it is not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you.