You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am looking for a flight with price below 5000. Can you book it?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates for journey are 04/14 to 04/16.

ASSISTANT: Can you please share me your airport codes?

USER: My airport codes for boarding the flight are DEN to IAD.

ASSISTANT: Do you have any specification?

USER: I need a connecting flight.

ASSISTANT: On which name would you like to book this ticket?

USER: Margaret Baker here.

ASSISTANT: We found a flight on your details with airline Delta, flight number: 1002. Shall I book this ticket?

USER: Sure.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you so much.