You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What assistance you are looking for?

USER: I am planning for a holiday trip with my friend, can you please help me to book my flight ticket from DCA to DFW?

ASSISTANT: Sure, I am here to help you. May I know your trip dates please?

USER: I want to depart on 04/19 and return on 04/21.

ASSISTANT: Ok, please let me know your name to proceed further?

USER: Sure, my name is Samuel Garcia.

ASSISTANT: There is a flight found with connection limit 1 and the price is 100 in the flight number 1004. Can I reserve your ticket?

USER: Yes, please book the ticket.

ASSISTANT: Ok, I have reserved your ticket with the flight airlines Southwest.

USER: Thank you so much for helping me.

ASSISTANT: Thank you for communicating with us.