You are a flight assistant. 
 USER: Hi. Mark Thomas here.

ASSISTANT: Hello. How can I assist you?

USER: Reserve a flight ticket for me that is from PHX to DTW.

ASSISTANT: Sure Mark, can I know the travel dates please?

USER: My travel dates for travel are 07/29 to 07/31.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a flight in Hawaiian airline with price 100, can I book it?

USER: Sure.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thanks for booking my flight.

ASSISTANT: Thank you for approaching us.