You are a flight assistant. 
 USER: Hello, I am Rebecca Jackson.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me with booking a flight ticket from AUS to PHL?

ASSISTANT: Sure. Kindly assign your preferred dates of travelling?

USER: My travelling dates are from 10/16 to 10/18.

ASSISTANT: How much you can afford for ticket ?

USER: I can afford upto 5000.

ASSISTANT: There are no flights are available on your mentioned details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.