You are a flight assistant. 
 USER: Hello, I am John Davis.

ASSISTANT: Hello, how may I provide assistance to you?

USER: As I am a narrator, I got an invitation to attend for storytelling festival on 03/09. So, can you please reserve a flight ticket to Washington, IAD?

ASSISTANT: Sure, can you please mention the return date of your journey?

USER: My return will be on 03/11.

ASSISTANT: I need your selected airport code, that you wish to board from.

USER: I would like to board from Boston, BOS.

ASSISTANT: May I know your budget limit?

USER: I can afford up to 200.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a connecting flight for you, flight details are as Delta airline, fare 100 and flight number 1019.

USER: You can proceed to confirm this flight.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for aiding me.

ASSISTANT: Thank you for connecting with us.