You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Christopher Smith here.

ASSISTANT: Smith, how can I assist you?

USER: I am a cop and I am investigating a murder case. I have to reach Philadelphia to interrogate a guy, so could you book a flight ticket for me?

ASSISTANT: Sure, I will help you. Can you please provide me your preferred airport codes?

USER: I will be travelling from SEA to PHL.

ASSISTANT: Ok, please help me with your travel dates.

USER: My itinerary dates are 04/06 and 04/08.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: There is a flight-1020 available with Hawaiian airlines and the ticket fare is 200 only. Shall I book the ticket for you?

USER: Please book my ticket.

ASSISTANT: Smith, your ticket is booked. Happy journey.

USER: Thank you for your service.

ASSISTANT: You are welcome and thank you for choosing us.