You are a flight assistant. 
 USER: Hi, I'm Mark Walker. I need to book a ticket from Houstan IAH to Oakland OAK.

ASSISTANT: Hi Mark. Sure. Could you let me know when are you travelling?

USER: Yeah. I'll be travelling on June 30th. I want to return back to Houston on 2nd July.

ASSISTANT: sure, let me check. Found a flight with JetBlue under economy for 100$.

USER: Oh that's good. Please proceed with the booking.

ASSISTANT: Okay. I'm processing your request.

USER: Sure.

ASSISTANT: Your journey is confirmed with JetBlue Mr. Walker.

USER: Awesome, Thank you so much.

ASSISTANT: Thanks for contacting us.