You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to attend a seminar at Phoenix, please help me in booking a ticket from IAH to PHX.

ASSISTANT: Sure, can you please share your travel dates?

USER: My planned trip dates are on Aug 29 and Aug 31.

ASSISTANT: May I know your connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: No more specifications.

ASSISTANT: May I know your name to proceed further?

USER: My name is Rachel Evans.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for contacting us.