You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you now?

USER: Can you please help me to book a flight from IAH to reach ORD?

ASSISTANT: Yes, I will definitely try my best to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: My preferable dates are on June 16th to 18th.

ASSISTANT: Do you have any connection limit for your flight?

USER: Yes, I need a single connection.

ASSISTANT: May I know about your other requirements?

USER: No.

ASSISTANT: Let me know your good name to proceed further.

USER: Sure, my name is Amy Carter.

ASSISTANT: Sorry to say that, we have not found any flights running on your desired routes.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.