You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to book a connected flight to reach Chicago?

ASSISTANT: Sure. From where would you prefer to take off?

USER: Thank you and I would like to take off from HOU.

ASSISTANT: Can I have your good name?

USER: Sure, my name is Charles Collins.

ASSISTANT: Could you please share your planned journey dates?

USER: My planned dates are on Feb 7th to till 9th.

ASSISTANT: May I know your class preference?

USER: I am okay with any class.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, there were no flights available that matches your requirements.

USER: Not a problem, thank you.

ASSISTANT: Thank you.