You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,. How shall I help you?

USER: Jessica Williams here. I got a chance to act in a movie which is screening at Houston, TX - IAH. Can you help me to book a connecting flight?

ASSISTANT: Please specify origin airport code?

USER: My origin is from Los Angeles, ca-lax.

ASSISTANT: Please mention your journey dates?

USER: I want to travel on 05/09 and intend to return on 05/11.

ASSISTANT: No flights are available for your requirement.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.