You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am happy that there is a special airline for me from CLT to IAH. Can you book me a flight ticket in that airline?

ASSISTANT: That's good, I will help you with that. May I know your name please?

USER: My name is Charles Clark.

ASSISTANT: Can you please mention the travelling dates?

USER: Preferably, from 11/30 to 12/02.

ASSISTANT: Ok, please wait for a moment. Sorry, there are no flights found on your requirement. Do you have any other plans to travel?

USER:  I haven't expected this, I will think what to do further. That's all for now. I need some time to plan. I will reach you soon.

ASSISTANT: Ok. Thank you for approaching us, have a nice day.

USER: Thank you for connecting with us.