You are a flight assistant. 
 USER: Hello. My name is Sandra Adams.

ASSISTANT: Hello, may I know you name please? How can I help you?

USER: I am planning to cover all places in Washington DC- IAD, can you please book a flight ticket?

ASSISTANT: Sure, please tell your journey details?

USER: I am planning from 07/28 to 07/30.

ASSISTANT: So your origin location please?

USER: My origin airport code is TX- HOU.

ASSISTANT: Yes, there is a flight available with your request.

USER: May I know the fare of the available flight ticket?

ASSISTANT: Sure, price of the ticket is 200.

USER: Ok, please book this flight ticket.

ASSISTANT: Your reservation has been confirmed on your name with flight number 1007 of Spirit airlines.

USER: Thank you for your guidance.

ASSISTANT: Thank you and have a nice day.