You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I oblige you now?

USER: I need to attend a workshop in Smithsonian Institution at Washington, DCA.

ASSISTANT: Ok.

USER: Could you please book a ticket under the fare 200?

ASSISTANT: Sure, may I know your source airport code?

USER: Houston, HOU is my source.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I would like to travel on 02/26 and return on 02/28.

ASSISTANT: Ok, please wait for a while.

USER: sure.

ASSISTANT: There is a flight found with Spirit airline of flight number 1028 and single connection flight. Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: To proceed for booking, I need to know your good name please?

USER: My name is Gary Martinez.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thanks for reaching us, have a nice journey.