You are a flight assistant. 
 USER: Hi, I am Patrick Smith.

ASSISTANT: Hello, how may I abet you?

USER: Please help me with booking a ticket from BOS to HOU.

ASSISTANT: Sure, may I know when are you willing to travel?

USER: I would like to fly from 05/31 and returning would be on 06/02.

ASSISTANT: Do  you need a lay by?

USER: Its an emergency, I need a direct flight to reach my destination.

ASSISTANT: Thanks for sharing your essentials. There are no flights available at this moment on your required dates.

USER: That's fine, thanks fir the information.

ASSISTANT: Thank you for approaching us.