You are a flight assistant. 
 USER: Hello. I am Kevin Lee.

ASSISTANT: Hello, How can I assist you?

USER: I want to book a flight ticket to watch movie in The Music Box Theater in Houston, could you help me in booking a flight ticket?

ASSISTANT: Sure, May I know the journey codes?

USER: My source is Detroit, MI - DTW and destination is TX - IAH.

ASSISTANT: Please help me with your travel planned dates.

USER: I would like to fly on 03/22 and return on 03/24.

ASSISTANT: Please give a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you.