You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

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 am  mirthful to help you. On which dates you have planned to book a flight ticket?

USER: Dates are 03/02 and 03/04.

ASSISTANT: May I know your takeoff and landing airport codes?

USER: My airport codes are BOS-DFW.

ASSISTANT: Do you have any price limit?

USER: Price should not cross 5000.

ASSISTANT: There is a flight available with 1020 in Spirit airline with fare 200. Shall I proceed?

USER: Go ahead.

ASSISTANT: Can you please share your name?

USER: Dorothy Anderson here.

ASSISTANT: Your booking is done.

USER: Thank you so much.

ASSISTANT: Thank you for picking us.