You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Rebecca Nelson.

ASSISTANT: How may I help you, Rebecca?

USER: I want to book a flight reservation from DCA - HOU, can you help me?

ASSISTANT: Sure, may I know your journey dates please?

USER: Sure, I would like to travel on 12/01 and 12/03.

ASSISTANT: Rebecca, please wait for a minute.

USER: Ok, take your time.

ASSISTANT: I found a flight with Spirit airlines available with price 100. Shall I book the ticket for you?

USER: Please confirm the ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1001.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us, have a happy journey.