You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Debra Martin. Can you book a flight ticket for me from HOU to PHL?

ASSISTANT: Sure, I will help you in booking the ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: My dates are on 10/08 and back on 10/10.

ASSISTANT: Ok, please wait for a while.

USER: Sure. Search a flight with 1 connection.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Ok, no problem with that. Thank you for your help.

ASSISTANT: Thank you for choosing us.