You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for the day?

USER: As I am a scientist, I want to attend science festival with my students at Philadelphia. Can you do the reservation?

ASSISTANT: Sure. Can you please forward your journey dates that you  prefer to travel?

USER: Dates are 09/06 and 09/08.

ASSISTANT: Kindly assign your boarding and landing points please?

USER: My airport codes are IAH-PHL.

ASSISTANT: Is there any more specifications?

USER: I need break in my journey. Price should not cross 5000.

ASSISTANT: May I know your name please?

USER: Joshua Green here.

ASSISTANT: Thank you for sharing your details, we did not find any flights matching your specifications.

USER: No problem, I will check with another airline.

ASSISTANT: Thank you for approaching us. Have a good day.