You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Sarah Smith.

ASSISTANT: Sarah, how may I help you?

USER: I have to go Washington for my film shooting purpose, can you please book a flight ticket from DEN to IAD?

ASSISTANT: Sure, please provide your itinerary dates.

USER: Ok, my preferred dates of journey are 04/03 and 04/05.

ASSISTANT: Please hold on for a while.

USER: Ok, take your time.

ASSISTANT: JetBlue airlines with flight 1020 is available on your route.

USER: Ok, please go ahead for booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.