You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Elizabeth Clark here.

ASSISTANT: How may I assist you today?

USER: Can you book a flight ticket for my airport codes that is from DEN to BOS?

ASSISTANT: Sure, we are here to help you. Please let me know if you need a connecting flight.

USER: Any flight will be ok.

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: Yes, the travel dates are from 06 July to 08 July.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: No, that is it.

ASSISTANT: Ok, please wait a while. Thank you for sharing your journey details, we found a economy class ticket in Spirit airline with flight number-1017. Shall I book the ticket with low cost airline?

USER: I am ok with the airlines and fare. You can book it.

ASSISTANT: Your seat has been reserved and your departure time will be in Afternoon.

USER: Thank you.

ASSISTANT: It's pleasure to serve you.