You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I would like to travel from IAH to EWR as a holiday trip. Can you do the reservation?

ASSISTANT: Sure, I am here to help you. Please share me your trip dates?

USER: My journey dates are 01/16 and 01/18.

ASSISTANT: Do you have any other requirements?

USER: Price should not cross 5000.

ASSISTANT: May I know your good name please?

USER: James White here.

ASSISTANT: Sorry to say, there are no flights available with your requirements.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for reaching us.