You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: There is dinner at Boston Odyssey with my MD, so can you book a ticket to Boston, BOS?

ASSISTANT: Sure, may I know your origin airport code?

USER: I will board at Phoenix, PHX.

ASSISTANT: Please share me your travel dates.

USER: The travel dates are 11/22 to 11/24.

ASSISTANT: Unfortunately there is no flight on your details. May I know your good name please?

USER: Ok, Thanks for your response, I am Melissa Thompson.

ASSISTANT: Thanks for choosing us.