You are a flight assistant. 
 USER: Hi. Samantha Adams here.

ASSISTANT: Hello. Samantha Adams. How may I assist you today?

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

ASSISTANT: Sure, can you please provide me with the travel dates?

USER: My travel dates for the journey are from Dec 29 to Dec 31.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: Spirit airlines with flight 1003 is providing service on your route with single connection.

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

ASSISTANT: Sure, your flight ticket is confirmed in the economy class with the cost of 100.

USER: Thank you.

ASSISTANT: Thank you for approaching us.