You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to go shopping with my family can you please help me out booking a flight ticket?

ASSISTANT: Sure, we are here to help you. May I know your journey dates?

USER: My date of travel is from 05/17 to 05/19.

ASSISTANT: Kindly, mention your airport codes.

USER: Sure.

ASSISTANT: Do you have any specifications?

USER: My airport codes are from Phoenix, AZ-PHX to Houston, TX-HOU.

ASSISTANT: May I know your good name for further process?

USER: I am Jack Harris.

ASSISTANT: No flights found on your journey dates.

USER: No issue.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you so much for the information.