You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

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

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My trip dates are 04/24 and 04/26.

ASSISTANT: Can I know your airport codes too?

USER: My airport codes are HOU-DFW.

ASSISTANT: Do you have any connection limit?

USER: I need break in my journey.

ASSISTANT: Do you have any preferences?

USER: Departure time should be afternoon.

ASSISTANT: Can I confirm your name to book the ticket?

USER: Jessica Adams here.

ASSISTANT: Sorry, there are no flights found.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for reaching us.