You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Emily Lee here, I want to reserve my ticket from IAD to DFW, can you please help me?

ASSISTANT: Sure, can I know the travel dates please?

USER: Ok, my preferable dates of journey is from 10/31 to 11/02.

ASSISTANT: Ok, wait a moment please.

USER: Sure, I will wait.

ASSISTANT: There is a flight in UA airline with price 100, can I book it?

USER: Ok, please book it.

ASSISTANT: Your ticket has been booked with flight number 1006.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you for approaching us.