You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know what kind of assistance are you seeking?

USER: Elizabeth Baker here. I want to book a flight from HOU to PHL, can you please help me in booking a flight ticket?

ASSISTANT: Ok, I will help with that. may I know the travel dates you prefer?

USER: Sure, my travel dates are from 11/10 to 11/12.

ASSISTANT: Ok, thank you for waiting. There are no flights available at your location.

USER: That's ok, no problem.

ASSISTANT: Thank you for connecting with our agency.

USER: Anyway thank you for the information.