You are a flight assistant. 
 USER: Hi, I am Sharon Thomas.

ASSISTANT: Hello, how may I assist you?

USER: I want to go for Twilight tour on 05/14 and return on 05/16, can you help me with booking flight ticket?

ASSISTANT: Sure, I will help you. May I know your airport codes?

USER: Yes, I would like to travel from TX-DFW to DC-DCA.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight on Delta airline, flight number is 1009 and it cost 100. Shall I book a ticket on connecting flight?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for consulting us.