You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Barbara Miller.

ASSISTANT: How may I assist you now?

USER: I am planning to visit Washington to meet my friend, will you help em in booking the flight ticket  with single halt?

ASSISTANT: Sure, I will help you. Can you please share your planned trip dates?

USER: My travelling dates are Oct 29 and 31.

ASSISTANT: Let me know your source and destination airport codes.

USER: My airport codes are BOS and IAD.

ASSISTANT: Do you have any other specifications?

USER: I need a flight with normal cost.

ASSISTANT: Give me a minute, I will let you know the flight availability.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for your time, there is a flight available with price 100 and single connection in Delta airline. Shall I confirm your ticket in economy class?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your reservation has been confirmed with flight number 1026.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.