You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Emma Harris here.

ASSISTANT: How can I help you?

USER: Reserve a flight ticket for me that is from DCA to PHL.

ASSISTANT: Ok, may I know your travel dates please?

USER: My travelling dates for journey are 11/17 to 11/19.

ASSISTANT: Hawaiian airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: You can book it.

ASSISTANT: Your ticket has been booked with flight-1025, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.