You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, In what way can I assist you now?

USER: Can you help me in doing a reservation from LAS to HOU?

ASSISTANT: Sure, can I know your good name please?

USER: I am Angela White.

ASSISTANT:  When you are willing to travel?

USER: My journey dates are Aug 27 to 29.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: No, please proceed further.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for supporting us.