You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I need you to book a flight ticket from ORD to PHX. Please help me.

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: June 7 and 9 are my planned travelling dates.

ASSISTANT: Do you need any break?

USER: No, I need a direct flight.

ASSISTANT: Would you like to avail any benefits for the comfort of your journey?

USER: Yes, I would like to fly in a economy class flight.

ASSISTANT: May I know your name?

USER: My name is Alexander Carter.

ASSISTANT: Please be on hold for sometime, as I can check a flight for your journey with the best airlines.

USER: Sure, take your time.

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

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.