You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: I want to travel from EWR to HOU to meet my sister. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, We are here to help you. May I know your name?

USER: Sure, Jonathan Williams here.

ASSISTANT: Please share me your travelling dates?

USER: My travelling dates are Sep 7 and Sep 9.

ASSISTANT: Do you have any other requirements?

USER: Yes, I prefer to travel in a connecting flight.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT:   We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for opting us.