You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Please book a flight ticket from IAH to EWR?

ASSISTANT: Sure, can I have your name please?

USER: I am Charles Robinson.

ASSISTANT: Let me know your travelling dates?

USER: My journey dates are Aug 24 and Aug 26.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Any connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your given details.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.