You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Please help me to book a flight ticket from PHX to HOU.

ASSISTANT: Sure, to book a ticket can I know when you are planning to travel?

USER: My journey dates are from June, 01 to June, 03.

ASSISTANT: Do you have any other requirements?

USER: I need a single connecting flight.

ASSISTANT: Please provide your name.

USER: Amy Rodriguez.

ASSISTANT: We are sorry to inform you that there is no flight found with your matching information.

USER: Thank you for your information.

ASSISTANT: Thank you.