You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you now?

USER: I heard that Chicago is a good tourist place to visit, so I am planning to visit Chicago ORD with my friends for a day trip, can you help me with booking?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Will you help me with your dates of journey ?

USER: My preferable travel dates are from 05/02 to 05/04.

ASSISTANT: From where you are heading?

USER: My origin point is Washington IAD.

ASSISTANT: UA airline is available for you. With price 100 in 1011 flight.

USER: Please go ahead with booking.

ASSISTANT: On which name, I have to reserve a ticket?

USER: Frank Collins here.

ASSISTANT: In 1011 flight your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you.