You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this time?

USER: Can you please help me in booking my ticket from IAH to EWR?

ASSISTANT: Sure, please provide your journey details?

USER: My journey dates are from 01/03 to 01/05.

ASSISTANT: Do you have any time concern?

USER: No.

ASSISTANT: Can I know your name?

USER: Myself Dennis Gonzalez.

ASSISTANT: Do you need any break in between your journey?

USER: Yes, I need a single break.

ASSISTANT: Sure, any particular airlines do you prefer?

USER: No, there is no particular airline preference for me.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Any other specifications do you need?

USER: No.

ASSISTANT: Sorry, according to your given specifications we have not found any flight.

USER: It's ok, thank you for your help.

ASSISTANT: Thanks for contacting us.