You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Betty Clark, can you help me to book a flight ticket from DCA to LGA?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: Ok, please can you book a ticket for the dates Apr 18 and 20 respectively?

ASSISTANT: Ok, may I know your class preference please?

USER: Ok, please a single connecting flight of economy class.

ASSISTANT: Fine, please let me know if you have any other specifications.

USER: No, please book a flight with the intents I have given.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for a your response.

ASSISTANT: Frontier airlines is providing a flight on that route with ticket fare of 300, shall I proceed for booking?

USER: That is prefect, please book it.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1005, have a safe journey.

USER: Ok, thank you for the help provided.

ASSISTANT: Thank you for choosing us.