You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Scott Campbell, can you book a ticket from PHL to DFW?

ASSISTANT: Sure, can I have your trip dates?

USER: I am willing to travel on 02/04 and 02/06.

ASSISTANT: Sure, please wait for a moment. Flight-1008 is available in Delta airlines and the ticket costs you 100 only. Shall I book the ticket?

USER: Please book it.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you for helping me.

ASSISTANT: Thank you for contacting us and have a safe flight.