You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I am Elizabeth Clark. Can you book a flight ticket from IAH to PHX?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your planned journey dates?

USER: My planned journey dates are July, 6 and July, 8.

ASSISTANT: May I know your airline preference?

USER: I am comfortable with any airlines.

ASSISTANT: Do you want any connection in between your flight journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other requirement related to booking?

USER: No.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your given journey data.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for visiting us, we hope see you again.