You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, kindly share your travel dates.

USER: My journey dates are 05/27 and 05/29.

ASSISTANT: Do you have any connection preference?

USER: I need break in my journey.

ASSISTANT: May I know your airport codes?

USER: My airport codes are DFW-LGA.

ASSISTANT: May I know your name?

USER: Margaret White here.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: No issue, Thanks for the information.

ASSISTANT: Thanks for reaching us.