You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Walker.

ASSISTANT: How can I help you at this moment?

USER: I am planning to visit Washington from SFO to IAD. Can you find a flight ticket for me?

ASSISTANT: Sure, I will help you in booking flight ticket. Can you please mention your preferable travel dates?

USER: Thank you. My planned trip dates are on 04/29 and and on 05/01.

ASSISTANT: Please hold on a moment, I will check flight availability in this route.

USER: Sure.

ASSISTANT: UA airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I proceed with this?

USER: That's perfect you can proceed.

ASSISTANT: I have confirmed your flight ticket, flight number is 1003.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.