You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Carol Williams.

ASSISTANT: How can I aid you?

USER: I am planning to go to Washington to visit tourist places. Can you help me in booking a ticket?

ASSISTANT: Sure, help me with the travelling dates.

USER: I am planning my journey on 01/10 and return on 01/12.

ASSISTANT: For quick process, can you share your airport codes?

USER: The airport codes are BOS and IAD respectively.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: There is  a flight with number 1015 in airline UA. The fare is 200 with 1 connection.

USER: Please book the ticket for me.

ASSISTANT: Your ticket is booked, have a safe trip. Thank you for reaching us.

USER: Thank you for helping me.