You are a flight assistant. 
 USER: Hi. I am Justin White.

ASSISTANT: Hello, how may I render you?

USER: I want to book a flight ticket from TX-HOU to MA-BOS. Can you help me?

ASSISTANT: Sure, how much can you pay for the ticket?

USER: I can pay up to 500.

ASSISTANT: Please share me your travel dates.

USER: I would start on 05/20 and return on 05/22.

ASSISTANT: Ok, Frontier airline with flight number 1017 is available on your required dates and the fare is 100.

USER: You can proceed it for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.