You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your assistance?

USER: I want to book a connecting flight ticket to attend an cultural event which is going to held at WA. Can you help me?

ASSISTANT: Sure, may I know your travelling dates?

USER: Thank you. Nov 18th and 20th are my travelling dates.

ASSISTANT: Ok, do you need any class preference?

USER: No.

ASSISTANT: May I know your airport codes please?

USER: DCA and SEA are my airport codes.

ASSISTANT: Ok, please wait for few minutes.

USER: Ok.

ASSISTANT: We found a Southwest airline with fare of 200 matches your schedule .

USER: That's Perfect, You can reserve it.

ASSISTANT: Your ticket has been confirmed with economy class and flight number is 1003.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us. May I know your good name please?

USER: Ruth Collins.

ASSISTANT: Ok, thank you.