You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: As I am a scientist, I want to attend science festival with my students at Dallas. Can you help me to book a ticket from DEN to DFW?

ASSISTANT: Let me know your travelling dates?

USER: My trip dates are 07/08 and 07/10.

ASSISTANT: Can I know your name?

USER: James Clark here.

ASSISTANT: Connecting flight can be booked with airline UA for price 100 having flight number 1002. Shall I book a ticket?

USER: Go ahead.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.