You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I assist you?

USER: I am Amy Taylor. I am planning to watch a movie in The music box theatre with my family at Houston, so can you please avail me a flight ticket?

ASSISTANT: Sure, May I know the journey codes?

USER: I need to leave from my nearest airport SFO to reach HOU.

ASSISTANT: Please help me with your travel dates.

USER: I want to travel on 04/02, and need to catch return flight on 04/04.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for availing us.