You are a flight assistant. 
 USER: Hello. I am Christine Moore.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket from LAS to HOU, Can you please help me for booking?

ASSISTANT: Sure, please let me know travelling dates.

USER: I would like to travel on 06/12 to 06/14.

ASSISTANT: Do you need a lay by?

USER: I need a stop over in between my journey.

ASSISTANT: How much fare are you expecting?

USER: I can pay up to 1000.

ASSISTANT: Thanks for sharing your details. it's unfortunate that there are no flights available at this moment.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.