You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amy Johnson.

ASSISTANT: How may I serve you at this moment?

USER: I am planning to visit a NASA space center in Houston, so please book a flight ticket from PHX to IAH.

ASSISTANT: Sure, please provide your travelling dates.

USER: I will start on June 01, return on June 03.

ASSISTANT: Ok, do you need any halt in between the journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: We found a Delta airline with economy class and fare of 100 and a halt in between the journey.

USER: Ok, proceed to booking.

ASSISTANT: Your ticket has been confirmed with flight number 1029.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.