You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Charles Baker.

ASSISTANT: Charles, what kind of help are you expecting from my side?

USER: I have planned a small hangout trip with my friends, can you help me with booking a ticket from IAD to DFW?

ASSISTANT: That's great to hear. Sure, can I know the dates in which you are interested to travel?

USER: My trip dates are 05/16 and 05/18.

ASSISTANT: I found a flight 1025 that matches with your criteria, can I proceed with the booking?

USER: Please book my ticket.

ASSISTANT: Your reservation is booked with Spirit airlines.

USER: Thank you for your help.

ASSISTANT: Thank you, hope you have a great time with your friends.

USER: Sure.