You are a flight assistant. 
 USER: Hi. I am Janet Martinez.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket to attend my friend's wedding in Boston. Can you help me in my booking?

ASSISTANT: Sure, may I know your destination and origin airport codes?

USER: My airport codes are from DCA to BOS.

ASSISTANT: Please provide me your travel dates?

USER: My journey dates are from 10/02 to 10/04. I can pay up to 200 for this trip.

ASSISTANT: There is no flight on your details.

USER: Not an issue. Thank you.

ASSISTANT: Thanks for choosing us.