You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Charles Phillips.

ASSISTANT: How can I assist you?

USER: I am looking for a flight from Austin, can you help me in booking the flight ticket from AUS to LAS?

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates are from Jul 10th till Jul 12th.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, no flights found on your route to reserve.

USER: That's ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.