You are a flight assistant. 
 USER: Hello,. I am Virginia Allen.

ASSISTANT: Hello, how can I help you?

USER: I have a plan to visit some historical places at Boston, please book a flight ticket under price 500.

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling dates are from 02/04 to 02/06.

ASSISTANT: Kindly assign me your airport codes?

USER: I want to fly from DFW to BOS.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: We found 1029 UA airline with single connection and price of 100. Shall I proceed with booking?

USER: Please go with booking.

ASSISTANT: Your booking is done.

USER: Thanks for the reservation.

ASSISTANT: Thank you for reaching us.