You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you for today?

USER: I am a salsa dancer, I have to host a show at Houston. Please book my ticket from LAS to IAH.

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: Sure, my journey dates are from 09/10 to 09/12.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: It's ok, no problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.