You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Deborah Davis. I need to book a ticket to meet my friend for encouraging him because he is participating in 800 meters running. Can you help me in booking?

ASSISTANT: Yes, I can help you with that. Can I know your dates of travel?

USER: My travelling dates are 03/17 to 03/19.

ASSISTANT: Ok, could you share me your nearest airport codes?

USER: I have choosed to fly from SEA and land in IAD.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: I have found a flight ticket for you with a fare of 100 and 1 connecting flight. Can I proceed to booking?

USER: You can book it.

ASSISTANT: Ok, your ticket is booked with UA airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.